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Dermatology - Dermatitis Herpetiformis
Dermatitis herpetiformis is a long-lasting, recurring, highly itchy skin rash that often begins between the ages of 20 and 60. Males are afflicted with the condition at a rate that is twice as high as females.
The individual experiences severe and intermittent pruritus, characterized by a sensation of burning or stinging on the skin. In rare cases, pruritus may be completely absent. Symptoms typically occur before the emergence of skin lesions within a timeframe of 8 to 12 hours. The consumption of iodides and excessive intake of gluten are contributing factors that worsen the condition. Approximately 10-20% of patients exhibit laboratory findings indicating malabsorption in the small intestine. Typically, there are no systemic signs present.
Abnormalities
The lesions are characterized by red raised spots or flat patches, small solid vesicles, sometimes containing blood, and occasionally large blisters. The lesions are organized in clusters, which is why they are called herpertiformis, and their distribution is remarkably symmetrical. Scratching leads to the formation of excoriations and crusts. Postinflammatory hyperpigmentation and hypopigmentation develop in the locations where lesions have healed
The presence of clustered papulovesicles in specific areas, along with intense itching, strongly indicates the condition. In most cases, a biopsy of the initial lesions is sufficient for diagnosis. The presence of IgA deposits in the skin surrounding the lesion, as revealed by immunofluorescence, provides the most reliable confirmation. The differential diagnosis comprises several conditions such as allergic contact dermatitis, atopic dermatitis, scabies, neurotic excoriations, papular urticaria, bullous autoimmune diseases including bullous pemphigoid, and pemphigoid gestationis.
Administering Dapsone at a daily dosage of 100-150 mg, gradually reducing it to 50-25 mg, and sometimes as low as 50 mg twice a week, leads to a rapid and significant improvement, frequently observed within a few hours. Prior to initiating sulfones, it is advisable to measure the level of glucose-6-phosphate dehydrogenase. Additionally, it is recommended to assess methemoglobin levels within the first two weeks, and closely monitor blood counts during the initial months. If dapsone is not recommended due to medical reasons, sulfapyridine can be used at a dosage of 1-1.5 g per day. It is important to consume an adequate amount of fluids and closely check the presence of casts in urine as well as renal function. Following a gluten-free diet can perhaps inhibit the disease or enable a decrease in the dosage of dapsone or sulfapyridine, however the reaction is notably sluggish.
Dermatitis herpetiformis is a long-lasting, recurring, highly itchy skin rash that often begins between the ages of 20 and 60. Males are afflicted with the condition at a rate that is twice as high as females.
The individual experiences severe and intermittent pruritus, characterized by a sensation of burning or stinging on the skin. In rare cases, pruritus may be completely absent. Symptoms typically occur before the emergence of skin lesions within a timeframe of 8 to 12 hours. The consumption of iodides and excessive intake of gluten are contributing factors that worsen the condition. Approximately 10-20% of patients exhibit laboratory findings indicating malabsorption in the small intestine. Typically, there are no systemic signs present.
Abnormalities
The lesions are characterized by red raised spots or flat patches, small solid vesicles, sometimes containing blood, and occasionally large blisters. The lesions are organized in clusters, which is why they are called herpertiformis, and their distribution is remarkably symmetrical. Scratching leads to the formation of excoriations and crusts. Postinflammatory hyperpigmentation and hypopigmentation develop in the locations where lesions have healed
The presence of clustered papulovesicles in specific areas, along with intense itching, strongly indicates the condition. In most cases, a biopsy of the initial lesions is sufficient for diagnosis. The presence of IgA deposits in the skin surrounding the lesion, as revealed by immunofluorescence, provides the most reliable confirmation. The differential diagnosis comprises several conditions such as allergic contact dermatitis, atopic dermatitis, scabies, neurotic excoriations, papular urticaria, bullous autoimmune diseases including bullous pemphigoid, and pemphigoid gestationis.
Administering Dapsone at a daily dosage of 100-150 mg, gradually reducing it to 50-25 mg, and sometimes as low as 50 mg twice a week, leads to a rapid and significant improvement, frequently observed within a few hours. Prior to initiating sulfones, it is advisable to measure the level of glucose-6-phosphate dehydrogenase. Additionally, it is recommended to assess methemoglobin levels within the first two weeks, and closely monitor blood counts during the initial months. If dapsone is not recommended due to medical reasons, sulfapyridine can be used at a dosage of 1-1.5 g per day. It is important to consume an adequate amount of fluids and closely check the presence of casts in urine as well as renal function. Following a gluten-free diet can perhaps inhibit the disease or enable a decrease in the dosage of dapsone or sulfapyridine, however the reaction is notably sluggish.
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Dermatology - Postinflammatory Hyperpigmentation
Postinflammatory hyperpigmentation is a condition that occurs in people with darker skin as a result of acne, psoriasis, lichen planus, atopic dermatitis, contact dermatitis, or any inflammatory skin disease or injury. The duration of postinflammatory hyperpigmentation might range from several weeks to many months. Drug eruptions can sometimes cause an increase in skin pigmentation, namely in the melanin, which can also be linked to conditions like lichen planus and cutaneous lupus erythematosus.
Macular plaques of hyperpigmentation are typically localized to the area where the previous inflammation occurred and often have blurred, feathery edges. Riehl melanosis, also known as melanodermatitis toxica, is a patterned and merged pigmentation of the face and neck that appears black to brown-violet in color. This condition can be caused by contact or photocontact sensitivity to certain chemicals, especially fragrances found in cosmetics.
The diagnosis is based on clinical evaluation and encompasses all types of melanocytic lesions, as well as endocrine and metabolic diseases, and melasma.
Topical application of hydroquinone expedites the process of reducing excessive pigmentation in the outer layer of the skin. Dermal hyperpigmentation can be long-lasting, and there is now no remedy available.
Postinflammatory hyperpigmentation is a condition that occurs in people with darker skin as a result of acne, psoriasis, lichen planus, atopic dermatitis, contact dermatitis, or any inflammatory skin disease or injury. The duration of postinflammatory hyperpigmentation might range from several weeks to many months. Drug eruptions can sometimes cause an increase in skin pigmentation, namely in the melanin, which can also be linked to conditions like lichen planus and cutaneous lupus erythematosus.
Macular plaques of hyperpigmentation are typically localized to the area where the previous inflammation occurred and often have blurred, feathery edges. Riehl melanosis, also known as melanodermatitis toxica, is a patterned and merged pigmentation of the face and neck that appears black to brown-violet in color. This condition can be caused by contact or photocontact sensitivity to certain chemicals, especially fragrances found in cosmetics.
The diagnosis is based on clinical evaluation and encompasses all types of melanocytic lesions, as well as endocrine and metabolic diseases, and melasma.
Topical application of hydroquinone expedites the process of reducing excessive pigmentation in the outer layer of the skin. Dermal hyperpigmentation can be long-lasting, and there is now no remedy available.
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Dermatology - Infantile Hemangioma
Infantile hemangioma, sometimes referred to as strawberry hemangioma, is the prevailing neoplasm in infancy, with a prevalence of 1-2.5%, and up to 10% among Caucasian children before reaching one year of age. Females are more frequently affected than males, at a ratio of 3 to 1.
Infantile hemangiomas typically have rapid growth during the first year and then gradually shrink through a process of involution over the following 1-5 years. Involution has significant variation and is not associated with factors such as size, location, or appearance. Typically, involution is fully accomplished by the age of 10 years.
Infantile hemangiomas are pliable growths or patches that range in color from vivid red to dark purple and can be compressed. They typically measure between 1 and 8 centimeters in diameter. During the process of involution, a central area that transitions from white to gray becomes visible, and there is a possibility of ulceration. The lesions often occur as a single growth and can be found either in a specific area or spread throughout a larger territory. The most common locations for these growths are the head and neck, accounting for 50% of cases, followed by the trunk at 25%. However, lesions can also appear on the extremities and oral mucosa.
The diagnosis relies on clinical and MRI data indicating sluggish blood flow across the lesion.
The presence of GLUT-1 immunoreactivity effectively excludes the possibility of a vascular abnormality.
The majority of hemangiomas naturally regress without any lasting alteration to the skin, making a nonintervention approach the most effective and aesthetically pleasing method for managing most lesions. Treatment is necessary for around 25% of lesions that cause obstruction in important structures such as the eyes, hearing, or larynx, or that result in ulceration. Administering systemic medication is a challenging task that necessitates a high level of skill and proficiency.
Treatment options for this condition including surgical and medicinal procedures such as continuous wave or pulsed dye laser, cryosurgery, intralesional and systemic high-dose glucocorticoids, interferon α (IFN-α), and propanolol.
Infantile hemangioma, sometimes referred to as strawberry hemangioma, is the prevailing neoplasm in infancy, with a prevalence of 1-2.5%, and up to 10% among Caucasian children before reaching one year of age. Females are more frequently affected than males, at a ratio of 3 to 1.
Infantile hemangiomas typically have rapid growth during the first year and then gradually shrink through a process of involution over the following 1-5 years. Involution has significant variation and is not associated with factors such as size, location, or appearance. Typically, involution is fully accomplished by the age of 10 years.
Infantile hemangiomas are pliable growths or patches that range in color from vivid red to dark purple and can be compressed. They typically measure between 1 and 8 centimeters in diameter. During the process of involution, a central area that transitions from white to gray becomes visible, and there is a possibility of ulceration. The lesions often occur as a single growth and can be found either in a specific area or spread throughout a larger territory. The most common locations for these growths are the head and neck, accounting for 50% of cases, followed by the trunk at 25%. However, lesions can also appear on the extremities and oral mucosa.
The diagnosis relies on clinical and MRI data indicating sluggish blood flow across the lesion.
The presence of GLUT-1 immunoreactivity effectively excludes the possibility of a vascular abnormality.
The majority of hemangiomas naturally regress without any lasting alteration to the skin, making a nonintervention approach the most effective and aesthetically pleasing method for managing most lesions. Treatment is necessary for around 25% of lesions that cause obstruction in important structures such as the eyes, hearing, or larynx, or that result in ulceration. Administering systemic medication is a challenging task that necessitates a high level of skill and proficiency.
Treatment options for this condition including surgical and medicinal procedures such as continuous wave or pulsed dye laser, cryosurgery, intralesional and systemic high-dose glucocorticoids, interferon α (IFN-α), and propanolol.
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Dermatology - Oropharyngeal Candidiasis
Oral cavity infection with Candida spp. is caused by slight changes in host variables such as antibiotic medication, glucocorticoid therapy, age (infants, elderly), and weakened host defenses.
Oropharyngeal candidiasis frequently lacks symptoms, although individuals may have a sensation of burning or pain when consuming spicy or acidic foods, as well as a reduced ability to taste. Orodynophagia is present.
Thrush refers to the presence of colonies of Candida, which appear as white cottage cheese-like flecks on any mucosal surface. These flecks can range in size from 1-2 mm to covering the entire mucosal surface. Using a dry gauze pad to remove anything results in a red and inflamed mucosal area. Atrophic candidiasis manifests as a tongue that is smooth, red, and has undergone atrophy. Thrush may also manifest in some areas. Candida leukoplakia refers to the existence of white plaques that are resistant to removal. Angular cheilitis refers to the presence of candida intertrigo near the corners of the lips.
The diagnosis is established through clinical examination using potassium hydroxide (KOH) microscopy. The differential diagnosis comprises several conditions, including oral hairy leukoplakia, condyloma acuminatum, geographic tongue, hairy tongue, lichen planus, bite irritation, poor nutrition, and vitamin insufficiency.
Eliminate or cease the use of any factors that may contribute to a condition, if feasible.
Local treatment
Apply either nystatin or clotrimazole cream.
Systemic therapy
Administer oral fluconazole, itraconazole, or ketoconazole. Administer amphotericin B to treat severe cases of drug-resistant illness.
Oral cavity infection with Candida spp. is caused by slight changes in host variables such as antibiotic medication, glucocorticoid therapy, age (infants, elderly), and weakened host defenses.
Oropharyngeal candidiasis frequently lacks symptoms, although individuals may have a sensation of burning or pain when consuming spicy or acidic foods, as well as a reduced ability to taste. Orodynophagia is present.
Thrush refers to the presence of colonies of Candida, which appear as white cottage cheese-like flecks on any mucosal surface. These flecks can range in size from 1-2 mm to covering the entire mucosal surface. Using a dry gauze pad to remove anything results in a red and inflamed mucosal area. Atrophic candidiasis manifests as a tongue that is smooth, red, and has undergone atrophy. Thrush may also manifest in some areas. Candida leukoplakia refers to the existence of white plaques that are resistant to removal. Angular cheilitis refers to the presence of candida intertrigo near the corners of the lips.
The diagnosis is established through clinical examination using potassium hydroxide (KOH) microscopy. The differential diagnosis comprises several conditions, including oral hairy leukoplakia, condyloma acuminatum, geographic tongue, hairy tongue, lichen planus, bite irritation, poor nutrition, and vitamin insufficiency.
Eliminate or cease the use of any factors that may contribute to a condition, if feasible.
Local treatment
Apply either nystatin or clotrimazole cream.
Systemic therapy
Administer oral fluconazole, itraconazole, or ketoconazole. Administer amphotericin B to treat severe cases of drug-resistant illness.
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Dermatology - Sepsis
Sepsis is a systemic reaction to infection that can lead to the failure of several organs.
Patients typically exhibit elevated body temperature or abnormally low body temperature, rapid breathing, and accelerated heart rate.
Abnormalities
Erythroderma is indicative of staphylococcal or streptococcal toxic shock syndrome. Typically, people who experience this condition are young and in good overall health. Pustules, especially in newborns or individuals with weakened immune systems, indicate a fungal infection, specifically caused by Candida spp.
Pustules resulting from disseminated gonococcemia are found on the extremities, usually causing pain and appearing as gray, hemorrhagic, or black. These pustules are most frequently observed in young individuals who are otherwise in good health. Pustules can also occur as a result of local introduction of bacteria, such as in the case of staphylococcal sepsis. Purpura can result from vasculitis and is often noticeable in the small capillaries of the nail fold, particularly in individuals with thrombocytopenia, which is most typically observed in patients undergoing bone marrow transplantation. Immunocompromised individuals frequently experience opportunistic fungal infections, which typically manifest as red raised skin lesions, small red or purple spots, or pus-filled bumps that develop into purple discoloration.
Purpura fulminans can also be caused by severe meningococcemia. Cellulitis is a highly concentrated inflammation in a specific area. Blood cultures seldom yield positive results, and the normal cause of infection is bacterial.
Necrotizing fasciitis may result in positive blood cultures at a later stage of the disease as a result of the spread of bacteria through the bloodstream. Ecthyma gangrenosum is characterized by the initial formation of a red papule that later develops into a necrotic bulla. This typically occurs in the area between the umbilicus and the knees. The condition is usually caused by the spread of bacteria on the skin, although other organisms have also been observed. Ecthyma gangrenosum is most commonly seen in patients with a weakened immune system, particularly those with low levels of neutrophils. It often occurs in conjunction with an underlying malignancy.
The diagnosis is determined through clinical examination. There is a possibility of increased levels of white blood cells, C-reactive protein (CRP), and procalcitonin.
The differential diagnosis comprises cutaneous infections, medication hypersensitivity reactions, cutaneous lymphoma, psoriasis, contact dermatitis, trauma, thrombocytopenic purpura, cryoglobulinemia, and stasis dermatitis.
If the patient is not already in the Intensive Care Unit (ICU), they should be admitted immediately. Additionally, administer suitable antimicrobial medications within one hour of diagnosis, either based on empirical selection or guided by the results of a culture. Reassess the selection of antimicrobial agents on a daily basis in order to limit toxicity and optimize effectiveness. The administration of activated drotrecogin has demonstrated a reduction in fatality rates in cases of severe sepsis. Administer appropriate measures to maintain organ function.
Sepsis is a systemic reaction to infection that can lead to the failure of several organs.
Patients typically exhibit elevated body temperature or abnormally low body temperature, rapid breathing, and accelerated heart rate.
Abnormalities
Erythroderma is indicative of staphylococcal or streptococcal toxic shock syndrome. Typically, people who experience this condition are young and in good overall health. Pustules, especially in newborns or individuals with weakened immune systems, indicate a fungal infection, specifically caused by Candida spp.
Pustules resulting from disseminated gonococcemia are found on the extremities, usually causing pain and appearing as gray, hemorrhagic, or black. These pustules are most frequently observed in young individuals who are otherwise in good health. Pustules can also occur as a result of local introduction of bacteria, such as in the case of staphylococcal sepsis. Purpura can result from vasculitis and is often noticeable in the small capillaries of the nail fold, particularly in individuals with thrombocytopenia, which is most typically observed in patients undergoing bone marrow transplantation. Immunocompromised individuals frequently experience opportunistic fungal infections, which typically manifest as red raised skin lesions, small red or purple spots, or pus-filled bumps that develop into purple discoloration.
Purpura fulminans can also be caused by severe meningococcemia. Cellulitis is a highly concentrated inflammation in a specific area. Blood cultures seldom yield positive results, and the normal cause of infection is bacterial.
Necrotizing fasciitis may result in positive blood cultures at a later stage of the disease as a result of the spread of bacteria through the bloodstream. Ecthyma gangrenosum is characterized by the initial formation of a red papule that later develops into a necrotic bulla. This typically occurs in the area between the umbilicus and the knees. The condition is usually caused by the spread of bacteria on the skin, although other organisms have also been observed. Ecthyma gangrenosum is most commonly seen in patients with a weakened immune system, particularly those with low levels of neutrophils. It often occurs in conjunction with an underlying malignancy.
The diagnosis is determined through clinical examination. There is a possibility of increased levels of white blood cells, C-reactive protein (CRP), and procalcitonin.
The differential diagnosis comprises cutaneous infections, medication hypersensitivity reactions, cutaneous lymphoma, psoriasis, contact dermatitis, trauma, thrombocytopenic purpura, cryoglobulinemia, and stasis dermatitis.
If the patient is not already in the Intensive Care Unit (ICU), they should be admitted immediately. Additionally, administer suitable antimicrobial medications within one hour of diagnosis, either based on empirical selection or guided by the results of a culture. Reassess the selection of antimicrobial agents on a daily basis in order to limit toxicity and optimize effectiveness. The administration of activated drotrecogin has demonstrated a reduction in fatality rates in cases of severe sepsis. Administer appropriate measures to maintain organ function.
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Dermatology - Adverse Cutaneous Drug Reaction
Drug-induced rash, also known as adverse cutaneous drug reaction (ACDR), is a condition characterized by a skin rash caused by the use of medication.
Exanthematous drug reactions are the predominant kind of adverse cutaneous drug reactions (ACDR). Specific medications, such as penicillin and related antibiotics, carbamazepine, allopurinol, and gold salts, are highly likely to cause a response. Other substances with a moderate likelihood include sulfonamides (which have bacteriostatic, antidiabetic, and diuretic properties), nonsteroidal anti-inflammatory medications (NSAIDs), hydantoin derivatives, isoniazid, chloramphenicol, erythromycin, and streptomycin. The low likelihood include barbiturates, benzodiazepines, phenothiazines, and tetracyclines.
Sensitization takes place within the period of drug administration, starting from the first day and continuing for three weeks, with the highest occurrence observed on the ninth day. Allergic reactions to penicillin can manifest up to a fortnight after the cessation of the medication. Patients who have previously experienced exanthematous drug eruptions are highly likely to have a similar reaction if they are administered the same drug, and the eruption often occurs 2-3 days following therapy. The rash typically causes intense itching, and the presence of discomfort indicates a more severe reaction. Pyrexia and rigors frequently accompany the condition.
A symmetrical rash manifests on the torso and limbs and may also affect the palms, soles, and oral cavity. The rash exhibits a comparable visual manifestation to viral exanthems, such as measles. Macules and/or papules are small skin lesions ranging from a few millimeters to 1 cm in diameter. They exhibit colors ranging from bright red to tan and purple.
The lesions merge together to create extensive flat areas of skin discoloration, characterized by irregular or circular patterns of redness. Additionally, there may be a network-like pattern of red eruptions, a widespread redness like a sheet, severe redness of the skin, and purple discoloration in the lower thighs. Thrombocytopenic individuals may experience exanthematous eruptions that resemble vasculitis. Scaling and/or desquamation may manifest during the process of healing.
The diagnosis is made based on clinical examination, and the differential diagnosis encompasses all types of skin rashes, including those caused by viral infections, secondary syphilis, atypical pityriasis rosea, and early broad allergic contact dermatitis.
The crucial measure is to identify and cease the administration of the drug causing the problem. Administer oral antihistamines to alleviate itching. Topical glucocorticoids with high potency can accelerate the resolution of the eruption. If it is not possible to replace or exclude the problematic medicine, systemic glucocorticoids can be used to treat the ACDR. Patients should have knowledge of their individual drug hypersensitivity and be aware that other drugs in the same category may elicit a similar allergic reaction. It is recommended to wear a medical alert bracelet.
Drug-induced rash, also known as adverse cutaneous drug reaction (ACDR), is a condition characterized by a skin rash caused by the use of medication.
Exanthematous drug reactions are the predominant kind of adverse cutaneous drug reactions (ACDR). Specific medications, such as penicillin and related antibiotics, carbamazepine, allopurinol, and gold salts, are highly likely to cause a response. Other substances with a moderate likelihood include sulfonamides (which have bacteriostatic, antidiabetic, and diuretic properties), nonsteroidal anti-inflammatory medications (NSAIDs), hydantoin derivatives, isoniazid, chloramphenicol, erythromycin, and streptomycin. The low likelihood include barbiturates, benzodiazepines, phenothiazines, and tetracyclines.
Sensitization takes place within the period of drug administration, starting from the first day and continuing for three weeks, with the highest occurrence observed on the ninth day. Allergic reactions to penicillin can manifest up to a fortnight after the cessation of the medication. Patients who have previously experienced exanthematous drug eruptions are highly likely to have a similar reaction if they are administered the same drug, and the eruption often occurs 2-3 days following therapy. The rash typically causes intense itching, and the presence of discomfort indicates a more severe reaction. Pyrexia and rigors frequently accompany the condition.
A symmetrical rash manifests on the torso and limbs and may also affect the palms, soles, and oral cavity. The rash exhibits a comparable visual manifestation to viral exanthems, such as measles. Macules and/or papules are small skin lesions ranging from a few millimeters to 1 cm in diameter. They exhibit colors ranging from bright red to tan and purple.
The lesions merge together to create extensive flat areas of skin discoloration, characterized by irregular or circular patterns of redness. Additionally, there may be a network-like pattern of red eruptions, a widespread redness like a sheet, severe redness of the skin, and purple discoloration in the lower thighs. Thrombocytopenic individuals may experience exanthematous eruptions that resemble vasculitis. Scaling and/or desquamation may manifest during the process of healing.
The diagnosis is made based on clinical examination, and the differential diagnosis encompasses all types of skin rashes, including those caused by viral infections, secondary syphilis, atypical pityriasis rosea, and early broad allergic contact dermatitis.
The crucial measure is to identify and cease the administration of the drug causing the problem. Administer oral antihistamines to alleviate itching. Topical glucocorticoids with high potency can accelerate the resolution of the eruption. If it is not possible to replace or exclude the problematic medicine, systemic glucocorticoids can be used to treat the ACDR. Patients should have knowledge of their individual drug hypersensitivity and be aware that other drugs in the same category may elicit a similar allergic reaction. It is recommended to wear a medical alert bracelet.
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Dermatology - Toxic epidermal necrolysis (TEN)
Stevens Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are both severe and sometimes fatal responses of the skin and mucous membranes. They are characterized by widespread death and separation of the outer layer of the skin. Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are different forms of the same disease, which can occur spontaneously or as a result of medication. The main distinction between them is in the extent of the body surface area affected.
The interval between initial drug exposure and the appearance of symptoms is typically 1-3 weeks, however this is more frequently observed when the drug is administered again. A premonitory phase characterized by fever, general discomfort, and joint pain frequently takes place 1-3 days before the appearance of a rash. Altered nutrition, sensitivity to light, uncomfortable urination, and feelings of unease may manifest.
The individual experiences a mild to moderate sensitivity of the skin, along with a sensation of burning or itching in the conjunctiva. This is followed by discomfort, a burning feeling, soreness, and abnormal sensations in the skin known as paresthesia. Mouth lesions are unpleasant, sensitive. The prodromal rash is morbilliform and might be targetoid with or without purpura. The lesions quickly merge together; alternatively, there may be no distinct lesions, but instead a widespread redness and absence of a rash. As the rash develops further, it undergoes necrosis and forms crinkled macules that grow in size and merge together. Subsequently, there is a detachment of the outer layer of skin and the appearance of soft, raised blisters that extend when pressure is applied to reddened areas (known as the Nikolsky sign).
In cases of trauma, the skin's top layer is completely detached, revealing the underlying dermis which appears red and is seeping, similar to a second-degree burn caused by heat. The involvement of lips, buccal mucosa, conjunctiva, genital, and anal skin is constant and unavoidable. The eyes exhibit conjunctival diseases characterized by hyperemia, the production of pseudomembranes, keratitis, corneal erosions, and subsequent adhesions between the eyelids and the bulbar conjunctiva.
The potential causes for the condition include drug eruptions, erythema multiforme, scarlet fever, phototoxic eruptions, toxic shock syndrome, graft-versus-host disease, thermal burns, phototoxic reactions, staphylococcal scalded-skin syndrome (more common in young children and rare in adults), fixed drug eruption, and exfoliative dermatitis.
Prompt identification and cessation of potentially implicated medication(s) are of utmost significance. Patients receive optimal care in an intermediate or intensive care unit. Administer IV fluids and electrolytes as necessary for a patient with a severe third-degree thermal burn. However, a smaller amount of fluid is typically necessary for a thermal burn of same magnitude. Administering systemic glucocorticoids at the onset of the disease and in large quantities can effectively decrease the incidence of illness or death. During the advanced stages of the condition, they should not be used. Early administration of high-dose intravenous immunoglobulins effectively prevents illness development.
It is advised against undergoing surgical debridement.
Early treatment of ocular lesions with erythromycin ointment is recommended.
Stevens Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are both severe and sometimes fatal responses of the skin and mucous membranes. They are characterized by widespread death and separation of the outer layer of the skin. Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are different forms of the same disease, which can occur spontaneously or as a result of medication. The main distinction between them is in the extent of the body surface area affected.
The interval between initial drug exposure and the appearance of symptoms is typically 1-3 weeks, however this is more frequently observed when the drug is administered again. A premonitory phase characterized by fever, general discomfort, and joint pain frequently takes place 1-3 days before the appearance of a rash. Altered nutrition, sensitivity to light, uncomfortable urination, and feelings of unease may manifest.
The individual experiences a mild to moderate sensitivity of the skin, along with a sensation of burning or itching in the conjunctiva. This is followed by discomfort, a burning feeling, soreness, and abnormal sensations in the skin known as paresthesia. Mouth lesions are unpleasant, sensitive. The prodromal rash is morbilliform and might be targetoid with or without purpura. The lesions quickly merge together; alternatively, there may be no distinct lesions, but instead a widespread redness and absence of a rash. As the rash develops further, it undergoes necrosis and forms crinkled macules that grow in size and merge together. Subsequently, there is a detachment of the outer layer of skin and the appearance of soft, raised blisters that extend when pressure is applied to reddened areas (known as the Nikolsky sign).
In cases of trauma, the skin's top layer is completely detached, revealing the underlying dermis which appears red and is seeping, similar to a second-degree burn caused by heat. The involvement of lips, buccal mucosa, conjunctiva, genital, and anal skin is constant and unavoidable. The eyes exhibit conjunctival diseases characterized by hyperemia, the production of pseudomembranes, keratitis, corneal erosions, and subsequent adhesions between the eyelids and the bulbar conjunctiva.
The potential causes for the condition include drug eruptions, erythema multiforme, scarlet fever, phototoxic eruptions, toxic shock syndrome, graft-versus-host disease, thermal burns, phototoxic reactions, staphylococcal scalded-skin syndrome (more common in young children and rare in adults), fixed drug eruption, and exfoliative dermatitis.
Prompt identification and cessation of potentially implicated medication(s) are of utmost significance. Patients receive optimal care in an intermediate or intensive care unit. Administer IV fluids and electrolytes as necessary for a patient with a severe third-degree thermal burn. However, a smaller amount of fluid is typically necessary for a thermal burn of same magnitude. Administering systemic glucocorticoids at the onset of the disease and in large quantities can effectively decrease the incidence of illness or death. During the advanced stages of the condition, they should not be used. Early administration of high-dose intravenous immunoglobulins effectively prevents illness development.
It is advised against undergoing surgical debridement.
Early treatment of ocular lesions with erythromycin ointment is recommended.
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Dermatology - Erysipelas
Erysipelas is a form of cellulitis that affects the lymphatic system of the skin. It is typically caused by betahemolytic streptococci bacteria. The infection is characterized by its immediate impact on the skin and subcutaneous tissues. The point of entry is typically visible, and the infection quickly spreads along the superficial lymphatic veins of the skin. Host defense deficiencies, diabetes mellitus, drug and alcohol misuse, cancer and cancer treatment, chronic lymphedema, and past bouts of cellulitis/erysipelas are also risk factors.
Fever, chills can develop swiftly, before cellulitis is obvious clinically. Elevated body temperature of 38.5°C and accompanying shivering are commonly linked to group A streptococcal infection. Lymph nodes may exhibit regional enlargement and tenderness.
Abnormalities
A crimson, scorching, swollen, lustrous patch that begins at the point of entry expands with movement towards the center and has clearly defined edges that are uneven and somewhat raised. Vesicles, bullae, erosions, abscesses, bleeding, and necrosis can develop inside plaque. The lesions exhibit tenderness and cause pain.
The diagnosis is primarily made through clinical assessment of the lesion's appearance and the patient's medical history. Confirmation through culture may be necessary in certain cases. To determine if necrotizing fasciitis is present, it is recommended to do a deep biopsy and frozen-section histology. The differential diagnosis include several conditions such as early contact dermatitis, urticaria, insect bite, fixed medication eruption, erythema nodosum, acute gout, and erythema migrans. If necrosis is observed, it is advisable to evaluate potential causes such as vascular disease, calciphylaxis, warfarin necrosis, traumatic injury, cryoglobulinemia, fixed drug eruption, pyoderma gangrenosum, and brown recluse spider bite.
To address erysipelas, administer potent antibiotics based on the specific type and susceptibility of the microorganism, which can be determined through culture testing.
Erysipelas is a form of cellulitis that affects the lymphatic system of the skin. It is typically caused by betahemolytic streptococci bacteria. The infection is characterized by its immediate impact on the skin and subcutaneous tissues. The point of entry is typically visible, and the infection quickly spreads along the superficial lymphatic veins of the skin. Host defense deficiencies, diabetes mellitus, drug and alcohol misuse, cancer and cancer treatment, chronic lymphedema, and past bouts of cellulitis/erysipelas are also risk factors.
Fever, chills can develop swiftly, before cellulitis is obvious clinically. Elevated body temperature of 38.5°C and accompanying shivering are commonly linked to group A streptococcal infection. Lymph nodes may exhibit regional enlargement and tenderness.
Abnormalities
A crimson, scorching, swollen, lustrous patch that begins at the point of entry expands with movement towards the center and has clearly defined edges that are uneven and somewhat raised. Vesicles, bullae, erosions, abscesses, bleeding, and necrosis can develop inside plaque. The lesions exhibit tenderness and cause pain.
The diagnosis is primarily made through clinical assessment of the lesion's appearance and the patient's medical history. Confirmation through culture may be necessary in certain cases. To determine if necrotizing fasciitis is present, it is recommended to do a deep biopsy and frozen-section histology. The differential diagnosis include several conditions such as early contact dermatitis, urticaria, insect bite, fixed medication eruption, erythema nodosum, acute gout, and erythema migrans. If necrosis is observed, it is advisable to evaluate potential causes such as vascular disease, calciphylaxis, warfarin necrosis, traumatic injury, cryoglobulinemia, fixed drug eruption, pyoderma gangrenosum, and brown recluse spider bite.
To address erysipelas, administer potent antibiotics based on the specific type and susceptibility of the microorganism, which can be determined through culture testing.
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Dermatology - Dermatofibroma
Dermatofibromas are prevalent cutaneous nodules that resemble buttons and typically appear on the limbs. They hold significance solely due to their aesthetic appeal or the potential confusion they may cause as colored growths.
The lesions develop gradually over a span of several months and remain unchanged in size for several years. They may also exhibit spontaneous regression.
These nodules are without symptoms, measuring 3–10 mm in diameter and exhibiting varying colors. The nodule exhibits a convex shape, although occasionally it is also concave in relation to the adjacent skin. The surface can exhibit a lackluster, glossy, or rough texture, potentially appearing scaly or encrusted. Lateral compression results in the formation of a "dimple," which may occasionally be sensitive to touch.
The diagnosis is based only on clinical observations and assessments.
Therapy is unnecessary as removal results in the formation of scars. Cryosurgery with a cotton tip applicator results in a scar that is often more satisfactory, but often requires multiple treatments.
Dermatofibromas are prevalent cutaneous nodules that resemble buttons and typically appear on the limbs. They hold significance solely due to their aesthetic appeal or the potential confusion they may cause as colored growths.
The lesions develop gradually over a span of several months and remain unchanged in size for several years. They may also exhibit spontaneous regression.
These nodules are without symptoms, measuring 3–10 mm in diameter and exhibiting varying colors. The nodule exhibits a convex shape, although occasionally it is also concave in relation to the adjacent skin. The surface can exhibit a lackluster, glossy, or rough texture, potentially appearing scaly or encrusted. Lateral compression results in the formation of a "dimple," which may occasionally be sensitive to touch.
The diagnosis is based only on clinical observations and assessments.
Therapy is unnecessary as removal results in the formation of scars. Cryosurgery with a cotton tip applicator results in a scar that is often more satisfactory, but often requires multiple treatments.
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Dermatology - Telogen Effluvium
The temporary increased shedding of typical club hairs from dormant scalp follicles is known as telogen effluvium, and it is caused by a rapid transition from the anagen (growth phase) to the catagen and telogen phases (resting phase). This is an adverse response to several physical and psychological stressors, such as medication reactions, heavy metal poisoning, inflammatory scalp disease, physical illness, trauma, acute psychological stress, and changes in hormones and nutrition.
Increased daily hair loss and, in more extreme cases, diffuse scalp hair thinning are present. Most people are nervous and afraid of going bald. There are no scalp anomalies found.
There is noticeable diffuse scalp hair losing, and a mild hair pull collects one to several club or telogen hairs.
A hair pull, clinical signs, history, and potential biopsy are used to make the diagnosis, ruling out other possibilities. The differential comprises lupus, hypothyroidism, hyperthyroidism, diffuse-pattern alopecia areata, loose anagen syndrome, secondary syphilis, and alopecia brought on by medication.
Regrowth in postpartum TE may never be fully achieved if hair loss is significant and recurs after subsequent pregnancies. Up to a year may pass following the precipitating cause of TE.
The rule is complete regrowth of hair, meaning no intervention is necessary.
The temporary increased shedding of typical club hairs from dormant scalp follicles is known as telogen effluvium, and it is caused by a rapid transition from the anagen (growth phase) to the catagen and telogen phases (resting phase). This is an adverse response to several physical and psychological stressors, such as medication reactions, heavy metal poisoning, inflammatory scalp disease, physical illness, trauma, acute psychological stress, and changes in hormones and nutrition.
Increased daily hair loss and, in more extreme cases, diffuse scalp hair thinning are present. Most people are nervous and afraid of going bald. There are no scalp anomalies found.
There is noticeable diffuse scalp hair losing, and a mild hair pull collects one to several club or telogen hairs.
A hair pull, clinical signs, history, and potential biopsy are used to make the diagnosis, ruling out other possibilities. The differential comprises lupus, hypothyroidism, hyperthyroidism, diffuse-pattern alopecia areata, loose anagen syndrome, secondary syphilis, and alopecia brought on by medication.
Regrowth in postpartum TE may never be fully achieved if hair loss is significant and recurs after subsequent pregnancies. Up to a year may pass following the precipitating cause of TE.
The rule is complete regrowth of hair, meaning no intervention is necessary.
