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Dermatology - Cushing Syndrome
Troncal obesity, moon face, abdomen striae, hypertension, impaired glucose tolerance, protein catabolism, mental disorders, and amenorrhea and hirsutism in females are some of the characteristics that are associated with Cushing syndrome. This condition is linked to an excessive amount of adrenocorticosteroids.
Fatigue and muscle weakness, hypertension, personality changes, amenorrhea in females, polyuria, and polydipsia are some of the general symptoms and symptoms that are associated with this condition.
lesions (plural)
A plethora of obese individuals who have a "classic" habitus that is the result of the redistribution of fat, including moon face, "buffalo" hump, truncal obesity, and slender arms. An atrophic skin condition that is characterized by easy bruising and telangiectasia is present, and purple striae are most commonly found on the trunk and abdomen. Androgenetic alopecia is a condition that most commonly affects women, while facial hypertrichosis is characterized by pigmented hairs and frequently enlarged lanugo hairs on the face and arms. Acne that has just appeared (without comedones) or acne that has been present for some time is observed.
Urine samples taken over a period of twenty-four hours are used to determine blood glucose levels, serum potassium levels, and free cortisol levels. An faulty dexamethasone suppression test that fails to suppress endogenous cortisol release when dexamethasone is administered is diagnostic, and high ACTH is observed in the patient. Both pituitary and abdominal tumors should be ruled out, and osteoporosis should be evaluated.
Glucocorticoids that are exogenous should be eliminated, or the underlying endogenous source should be identified and corrected.
Troncal obesity, moon face, abdomen striae, hypertension, impaired glucose tolerance, protein catabolism, mental disorders, and amenorrhea and hirsutism in females are some of the characteristics that are associated with Cushing syndrome. This condition is linked to an excessive amount of adrenocorticosteroids.
Fatigue and muscle weakness, hypertension, personality changes, amenorrhea in females, polyuria, and polydipsia are some of the general symptoms and symptoms that are associated with this condition.
lesions (plural)
A plethora of obese individuals who have a "classic" habitus that is the result of the redistribution of fat, including moon face, "buffalo" hump, truncal obesity, and slender arms. An atrophic skin condition that is characterized by easy bruising and telangiectasia is present, and purple striae are most commonly found on the trunk and abdomen. Androgenetic alopecia is a condition that most commonly affects women, while facial hypertrichosis is characterized by pigmented hairs and frequently enlarged lanugo hairs on the face and arms. Acne that has just appeared (without comedones) or acne that has been present for some time is observed.
Urine samples taken over a period of twenty-four hours are used to determine blood glucose levels, serum potassium levels, and free cortisol levels. An faulty dexamethasone suppression test that fails to suppress endogenous cortisol release when dexamethasone is administered is diagnostic, and high ACTH is observed in the patient. Both pituitary and abdominal tumors should be ruled out, and osteoporosis should be evaluated.
Glucocorticoids that are exogenous should be eliminated, or the underlying endogenous source should be identified and corrected.
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Dermatology - Topical Phototoxic Dematitis
Inadvertent contact with a photosensitizer or therapeutic application of a photosensitizer, followed by exposure to ultraviolet A radiation (almost all topical photosensitizers have an action spectrum that falls within the UVA range). The most common topical phototoxic agents are rose Bengal used for ophthalmologic examination, the dye fluorescein, and furocumarins, which occur in plants ( Compositae spp. and umbiliforme spp. )—in this case the eruption is called phytophotodermatitis—, vegetables, and fruits (lime, lemon celery, parsley), in perfumes and cosmetics (oil of bergamot), and in drugs used for topical photochemotherapy (psoralens). Therapeutic or occupational exposure is the most prevalent way that people come into touch with the substance.
Erythema, swelling, vesiculation, and blistering are characteristics of the clinical presentation, which is similar to that of acute irritating contact dermatitis. These symptoms are localized to the areas where the phototoxic substance was exposed.
Rather of itching, the symptoms have been described as smarting, stinging, and burning. Healing almost always resulted in a noticeable increase in pigmentation.
The patient's medical history and the results of the physical examination are used to make a diagnosis. Other types of dermatitis, such as allergic contact dermatitis and irritating contact dermatitis, are included in the differential diagnosis.
Administer glucocorticoids topically, and either stop using the offending substance or stay out of the sun; counsel the patient on how to avoid sunshine in the future.
Inadvertent contact with a photosensitizer or therapeutic application of a photosensitizer, followed by exposure to ultraviolet A radiation (almost all topical photosensitizers have an action spectrum that falls within the UVA range). The most common topical phototoxic agents are rose Bengal used for ophthalmologic examination, the dye fluorescein, and furocumarins, which occur in plants ( Compositae spp. and umbiliforme spp. )—in this case the eruption is called phytophotodermatitis—, vegetables, and fruits (lime, lemon celery, parsley), in perfumes and cosmetics (oil of bergamot), and in drugs used for topical photochemotherapy (psoralens). Therapeutic or occupational exposure is the most prevalent way that people come into touch with the substance.
Erythema, swelling, vesiculation, and blistering are characteristics of the clinical presentation, which is similar to that of acute irritating contact dermatitis. These symptoms are localized to the areas where the phototoxic substance was exposed.
Rather of itching, the symptoms have been described as smarting, stinging, and burning. Healing almost always resulted in a noticeable increase in pigmentation.
The patient's medical history and the results of the physical examination are used to make a diagnosis. Other types of dermatitis, such as allergic contact dermatitis and irritating contact dermatitis, are included in the differential diagnosis.
Administer glucocorticoids topically, and either stop using the offending substance or stay out of the sun; counsel the patient on how to avoid sunshine in the future.
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Dermatology - Gonorrhea
Gonorrhea is a sexually transmitted infection caused by the bacterium Neisseria gonorrhoeae.
The predominant manifestation in males is the presence of purulent discharge from the urethra. The majority of men (90%) have symptoms of urethritis within a period of 5 days. The majority of infected women do not show any symptoms, and the most prevalent type of infection occurs in the cervix.
Abnormalities
Disseminated gonococcal infection manifests as hemorrhagic, painful pustules with erythematous bases on the palm and finger of the hand. The lesions manifest on the extremities and are limited in quantity.
The diagnosis is established through clinical examination and verified by laboratory findings and culture. The differential diagnosis comprises urethritis, trichomonas infection, Reiter's syndrome, and cervicitis.
To treat localized uncomplicated gonorrhea, administer a single dose of either intramuscular ceftriaxone 125 mg, oral cefixime 400 mg, intramuscular ceftizoxime 500 mg, intramuscular cefotaxime 500 mg, or intramuscular cefoxitin 2 g together with oral probenecid 1 g. For those with a penicillin allergy, administer 2 mg of spectinomycin intramuscularly. To treat disseminated gonococcal infection, provide ceftriaxone 1 g intramuscularly or intravenously every 24 hours, cefotaxime or ceftizoxime 1 g intravenously every 8 hours, or spectinomycin 2 g intramuscularly every 12 hours.
Gonorrhea is a sexually transmitted infection caused by the bacterium Neisseria gonorrhoeae.
The predominant manifestation in males is the presence of purulent discharge from the urethra. The majority of men (90%) have symptoms of urethritis within a period of 5 days. The majority of infected women do not show any symptoms, and the most prevalent type of infection occurs in the cervix.
Abnormalities
Disseminated gonococcal infection manifests as hemorrhagic, painful pustules with erythematous bases on the palm and finger of the hand. The lesions manifest on the extremities and are limited in quantity.
The diagnosis is established through clinical examination and verified by laboratory findings and culture. The differential diagnosis comprises urethritis, trichomonas infection, Reiter's syndrome, and cervicitis.
To treat localized uncomplicated gonorrhea, administer a single dose of either intramuscular ceftriaxone 125 mg, oral cefixime 400 mg, intramuscular ceftizoxime 500 mg, intramuscular cefotaxime 500 mg, or intramuscular cefoxitin 2 g together with oral probenecid 1 g. For those with a penicillin allergy, administer 2 mg of spectinomycin intramuscularly. To treat disseminated gonococcal infection, provide ceftriaxone 1 g intramuscularly or intravenously every 24 hours, cefotaxime or ceftizoxime 1 g intravenously every 8 hours, or spectinomycin 2 g intramuscularly every 12 hours.
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Dermatology - Neurofibromatosis
Neurofibromatosis is a hereditary condition that mostly impacts the skin, neurological system, bones, and endocrine glands. There are two primary forms: Type 1, also known as classic von Recklinghausen, and Type 2, sometimes referred to as central or acoustic neurofibromatosis. Both types exhibit café-au-lait macules and neurofibromas, however, only Type 2 presents with bilateral acoustic neuromas, while only Type 1 displays Lisch nodules.
Patients exhibit a range of symptoms including hypertension headaches (pheochromocytomas), pathologic fractures (bone cysts), mental retardation, brain tumor (astrocytoma), auditory neuromas, short stature, and early puberty.
The lesions are café-au-lait macules, which can be either light or dark brown. They have a homogeneous appearance with well-defined edges and come in various sizes, ranging from small freckle-like macules less than 2 mm in diameter to very massive brown macules exceeding 20 cm. Typically, macules measure 2–5 cm and can range in quantity from a small number to a large number.
Axillary freckling refers to the presence of little freckle-like lesions in the armpits, which is a highly distinctive feature.
Neurofibromas are papules that can vary in color, appearing as skin-colored, pink, or brown. They can have a flat, dome-shaped, or pedunculated appearance and may have a soft or firm texture. Occasionally, they can be painful to the touch. The presence of the "buttonhole sign" - the invagination with the tip of the index finger - is a characteristic feature that is highly indicative of the condition. Plexiform neuromas are characterized by their flaccid, pliable, and spongy texture, and can potentially grow to a considerable size, affecting an entire limb, the head, or a section of the torso. Lisch nodules are pigmented benign growths on the iris that can be observed during a slit lamp examination. They have a glassy, transparent, dome-shaped appearance and range in color from yellow to brown.
A diagnosis is established when at least two of the following criteria are met: 1) Adults with more than six café-au-lait macules larger than 1.5 cm, and children with more than five lesions larger than 0.5 cm; 2) Multiple freckles in the armpit and groin areas; 3) More than two neurofibromas or one plexiform neurofibroma; 4) Abnormal development of the sphenoid wing or congenital bending/thinning of the outer layer of long bones, with or without abnormal joint formation; 5) Tumors in both optic nerves; 6) More than two Lisch nodules; or 7) Having a first-degree relative (parent, sibling, or child) with neurofibromatosis.
Albright syndrome, which consists of polycytic fibroma, dysplasia, and precocious puberty, is encompassed within the differential.
Direct patients to genetic counseling, orthopedics, and behavioral-developmental pediatrics.
Conduct regular annual monitoring to identify sarcomas that may develop within plexiform neuromas. Surgical intervention is necessary for the treatment of facial asymmetry and malignancies.
Neurofibromatosis is a hereditary condition that mostly impacts the skin, neurological system, bones, and endocrine glands. There are two primary forms: Type 1, also known as classic von Recklinghausen, and Type 2, sometimes referred to as central or acoustic neurofibromatosis. Both types exhibit café-au-lait macules and neurofibromas, however, only Type 2 presents with bilateral acoustic neuromas, while only Type 1 displays Lisch nodules.
Patients exhibit a range of symptoms including hypertension headaches (pheochromocytomas), pathologic fractures (bone cysts), mental retardation, brain tumor (astrocytoma), auditory neuromas, short stature, and early puberty.
The lesions are café-au-lait macules, which can be either light or dark brown. They have a homogeneous appearance with well-defined edges and come in various sizes, ranging from small freckle-like macules less than 2 mm in diameter to very massive brown macules exceeding 20 cm. Typically, macules measure 2–5 cm and can range in quantity from a small number to a large number.
Axillary freckling refers to the presence of little freckle-like lesions in the armpits, which is a highly distinctive feature.
Neurofibromas are papules that can vary in color, appearing as skin-colored, pink, or brown. They can have a flat, dome-shaped, or pedunculated appearance and may have a soft or firm texture. Occasionally, they can be painful to the touch. The presence of the "buttonhole sign" - the invagination with the tip of the index finger - is a characteristic feature that is highly indicative of the condition. Plexiform neuromas are characterized by their flaccid, pliable, and spongy texture, and can potentially grow to a considerable size, affecting an entire limb, the head, or a section of the torso. Lisch nodules are pigmented benign growths on the iris that can be observed during a slit lamp examination. They have a glassy, transparent, dome-shaped appearance and range in color from yellow to brown.
A diagnosis is established when at least two of the following criteria are met: 1) Adults with more than six café-au-lait macules larger than 1.5 cm, and children with more than five lesions larger than 0.5 cm; 2) Multiple freckles in the armpit and groin areas; 3) More than two neurofibromas or one plexiform neurofibroma; 4) Abnormal development of the sphenoid wing or congenital bending/thinning of the outer layer of long bones, with or without abnormal joint formation; 5) Tumors in both optic nerves; 6) More than two Lisch nodules; or 7) Having a first-degree relative (parent, sibling, or child) with neurofibromatosis.
Albright syndrome, which consists of polycytic fibroma, dysplasia, and precocious puberty, is encompassed within the differential.
Direct patients to genetic counseling, orthopedics, and behavioral-developmental pediatrics.
Conduct regular annual monitoring to identify sarcomas that may develop within plexiform neuromas. Surgical intervention is necessary for the treatment of facial asymmetry and malignancies.
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Dermatology - Polymorphic Eruption of Pregnancy
Polymorphic eruption of pregnancy is a frequently occurring condition that often starts in the third trimester, primarily affecting first-time pregnant women (76%). There is no heightened risk of harm or death to the fetus.
Intense itching occurs on the belly, typically 1-2 weeks prior to childbirth. Nevertheless, symptoms and indications may emerge throughout the postpartum period.
Abnormalities
The skin lesions are characterized by red raised bumps, measuring 1-3 mm, that rapidly merge together to form hives with a circular shape and pattern. There are pale areas surrounding the edges of the lesions. Target lesions and small vesicles (2 mm) appear without blisters. Infrequently, the face, breasts, palms, and soles have minimal involvement. The area around the navel is typically unaffected.
There is an absence of mucous membrane lesions.
The diagnosis is made based on clinical examination, and the differential diagnosis covers all abdominal rashes that cause itching during pregnancy, such as medication reaction, allergic contact dermatitis, and metabolic pruritus.
Highly potent topical steroids, which can frequently be gradually reduced, along with oral prednisone at doses ranging from 10 to 40 mg per day, effectively alleviate symptoms within 24 hours. Oral antihistamines lack efficacy. Most women do not experience a recurrence during the postpartum period, subsequent pregnancies, or when using oral contraceptives. In the event of a recurrence, it often manifests with significantly reduced severity.
Polymorphic eruption of pregnancy is a frequently occurring condition that often starts in the third trimester, primarily affecting first-time pregnant women (76%). There is no heightened risk of harm or death to the fetus.
Intense itching occurs on the belly, typically 1-2 weeks prior to childbirth. Nevertheless, symptoms and indications may emerge throughout the postpartum period.
Abnormalities
The skin lesions are characterized by red raised bumps, measuring 1-3 mm, that rapidly merge together to form hives with a circular shape and pattern. There are pale areas surrounding the edges of the lesions. Target lesions and small vesicles (2 mm) appear without blisters. Infrequently, the face, breasts, palms, and soles have minimal involvement. The area around the navel is typically unaffected.
There is an absence of mucous membrane lesions.
The diagnosis is made based on clinical examination, and the differential diagnosis covers all abdominal rashes that cause itching during pregnancy, such as medication reaction, allergic contact dermatitis, and metabolic pruritus.
Highly potent topical steroids, which can frequently be gradually reduced, along with oral prednisone at doses ranging from 10 to 40 mg per day, effectively alleviate symptoms within 24 hours. Oral antihistamines lack efficacy. Most women do not experience a recurrence during the postpartum period, subsequent pregnancies, or when using oral contraceptives. In the event of a recurrence, it often manifests with significantly reduced severity.
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Dermatology - Genital Lentiginoses
Genital lentiginoses are harmless pigmented growths that develop in adulthood.
The coloration of the macules on the vulva (labia minora), penis (glans, shaft), and perianal areas is typically tan, brown, or deep blue-black. These macules, which are generally variegated and measure 5 to 15 millimeters, occur in clusters and remain unchanged in size for several years.
The diagnosis is made by a clinical examination and can be verified by using dermoscopy or by performing a biopsy of the affected area. The differential diagnosis encompasses melanoma in situ, fixed drug reaction, blue nevus, and squamous cell cancer.
Lesions of considerable size that are difficult to remove should be monitored using photography; any areas that exhibit notable changes should undergo biopsy.
Genital lentiginoses are harmless pigmented growths that develop in adulthood.
The coloration of the macules on the vulva (labia minora), penis (glans, shaft), and perianal areas is typically tan, brown, or deep blue-black. These macules, which are generally variegated and measure 5 to 15 millimeters, occur in clusters and remain unchanged in size for several years.
The diagnosis is made by a clinical examination and can be verified by using dermoscopy or by performing a biopsy of the affected area. The differential diagnosis encompasses melanoma in situ, fixed drug reaction, blue nevus, and squamous cell cancer.
Lesions of considerable size that are difficult to remove should be monitored using photography; any areas that exhibit notable changes should undergo biopsy.
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Dermatology - Diaper Dermatitis
Candidiasis, often known as diaper dermatitis, is a fungal infection that affects the skin.
An external infection of the skin caused by Candida albicans or other species of Candida.
Cutaneous candidiasis commonly develops in areas of the skin that are both wet and occluded, such as the diaper region of babies.
Pruritus, soreness, and pain manifest as irritability, discomfort during urination, feces, and diaper changes in babies.
Abnormalities
The initial pustules on a red base become degraded and merge together. Following that, distinct and well-defined, many, red, ulcerated patches with little pus-filled lesions emerge at the outside edges (known as satellite pustulosis). Lesions may exhibit collarette-like scaling along their edges.
The diagnosis is established through clinical examination and culture testing. The differential diagnosis includes atopic dermatitis, psoriasis, irritant dermatitis, and seborrheic dermatitis.
Most cases of diaper dermatitis can be effectively treated with antifungal creams such as nystatin, azole, or imidazole. If there is a recurrence, it is advisable to consider the use of oral nystatin, as it effectively eliminates the presence of bacteria in the intestines. Advise caretakers to maintain dryness in intertriginous areas, cleanse with benzoyl peroxide, and apply imidazole powder.
Candidiasis, often known as diaper dermatitis, is a fungal infection that affects the skin.
An external infection of the skin caused by Candida albicans or other species of Candida.
Cutaneous candidiasis commonly develops in areas of the skin that are both wet and occluded, such as the diaper region of babies.
Pruritus, soreness, and pain manifest as irritability, discomfort during urination, feces, and diaper changes in babies.
Abnormalities
The initial pustules on a red base become degraded and merge together. Following that, distinct and well-defined, many, red, ulcerated patches with little pus-filled lesions emerge at the outside edges (known as satellite pustulosis). Lesions may exhibit collarette-like scaling along their edges.
The diagnosis is established through clinical examination and culture testing. The differential diagnosis includes atopic dermatitis, psoriasis, irritant dermatitis, and seborrheic dermatitis.
Most cases of diaper dermatitis can be effectively treated with antifungal creams such as nystatin, azole, or imidazole. If there is a recurrence, it is advisable to consider the use of oral nystatin, as it effectively eliminates the presence of bacteria in the intestines. Advise caretakers to maintain dryness in intertriginous areas, cleanse with benzoyl peroxide, and apply imidazole powder.
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Dermatology - Anagen effluvium.
Anagen effluvium refers to the widespread and diffuse hair loss that occurs as a result of chemotherapy treatment with alkylating drugs, toxicity, or protein deficiency. The onset is typically swift and widespread following any damage to the hair follicle that hampers its ability to undergo cell division and metabolic processes. The severity of a condition typically increases with the dosage.
The skin remains unaltered. The hair loss is characterized by a widespread and comprehensive pattern, with the hair breaking off at the scalp level. Additionally, the eyebrows, eyelashes, face, and body hair may experience an impact, and the nails exhibit transverse bands or ridges, known as Beau lines.
The diagnosis is made through a clinical assessment, which takes into account the location of the fracture and the patient's medical history. The differential diagnosis encompasses alopecia, telogen effluvium, tinea capitis, and trichotillomania.
There are no viable preventative strategies as long as the hazardous substances remain present. Hair regenerates if chemotherapy or other harmful substances are stopped, or when there is sufficient protein consumption. The regrowth of hair after radiation treatment is influenced by factors such as the kind, depth, and dosage fractionation of the radiation. In certain cases, this regrowth may lead to permanent harm to the stem cells in the hair follicles.
Anagen effluvium refers to the widespread and diffuse hair loss that occurs as a result of chemotherapy treatment with alkylating drugs, toxicity, or protein deficiency. The onset is typically swift and widespread following any damage to the hair follicle that hampers its ability to undergo cell division and metabolic processes. The severity of a condition typically increases with the dosage.
The skin remains unaltered. The hair loss is characterized by a widespread and comprehensive pattern, with the hair breaking off at the scalp level. Additionally, the eyebrows, eyelashes, face, and body hair may experience an impact, and the nails exhibit transverse bands or ridges, known as Beau lines.
The diagnosis is made through a clinical assessment, which takes into account the location of the fracture and the patient's medical history. The differential diagnosis encompasses alopecia, telogen effluvium, tinea capitis, and trichotillomania.
There are no viable preventative strategies as long as the hazardous substances remain present. Hair regenerates if chemotherapy or other harmful substances are stopped, or when there is sufficient protein consumption. The regrowth of hair after radiation treatment is influenced by factors such as the kind, depth, and dosage fractionation of the radiation. In certain cases, this regrowth may lead to permanent harm to the stem cells in the hair follicles.
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Dermatology - Tinea Capitis
Tinea is an infection of keratinized cutaneous tissues that is caused by a specific group of fungus known as dermatophytes. The arthrospores of these species can live in skin scales for up to a year.
Transmission occurs most frequently from person to person, followed by transmission from animals, and finally transmission from soil. Tinea capitis is a dermatophytic infection that affects the scalp and hair, and it is most commonly found around the age of children.
Tinea capitis can manifest itself in a variety of ways, including non-inflammatory scaling patches, scaling and broken-off hairs, or severe, painful inflammation with painful, swampy nodules that drain pus (kerion) and end in scarring alopecia, particularly in cases when there is secondary infection. The restoration of hair typically takes place after antifungal medication has been administered.
lesions (plural)
Scaling that is not caused by inflammation tends to manifest as diffuse or confined alopecia. The term "gray patch" refers to a condition that causes partial alopecia and is characterized by a circular form, relatively sharp borders, and fine scale. It is characterized by a large number of hairs that have broken off and a dull gray coating of arthrospores. The smaller patches eventually come together to form larger patches. Patients with dark hair may experience "black dot" lesions, which are broken-off hairs that are located close to the scalp and give the appearance of "dots" (swollen hair shafts). In most cases, the lesion is widespread and poorly defined, and there is a possibility that low-grade folliculitis is present.
Kerion and favus are inflammatory masses that are characterized by swampy, purulent, inflamed nodules and plaques. These masses are typically painful and drain pus from many holes, similar to honeycombs. Rather than breaking off, hairs fall out and can be tugged out without causing any discomfort. It is possible for follicles to expel pus, sinus development, and grains that resemble mycetoma. A thick crust is there, and the hairs that are close to it have matted. Most cases feature a single plaque, but when the entire scalp is affected, it is possible for several lesions to develop. A significant number of patients exhibit concomitant lymphadenopathy.
The presence of fungal hyphae can be determined through direct microscopy of the hair shaft (which is obtained by plucking), as well as through the collection of scalp scales using a brush that has been covered with a drop of potassium hydroxide (KOH).
The differential diagnosis consists of seborrheic dermatitis, psoriasis, atopic dermatitis, lichen simplex chronicus, alopecia areata, and chronic cutaneous lupus erythematosus. Additionally, impetigo, ecthyma, and crusted scabies are also considered in cases of kerion or favus.
The most effective oral antidermophytic drug is Systemic Terbinafine 250-mg tablet, which features an allylamine as its active ingredient. Alternatives include fluconazole pills of 100, 150, or 200 milligrams or oral suspensions of 10 or 40 milligrams per milliliter, as well as itraconazole capsules of 100 milligrams or oral solution of 10 milligrams per milliliter.
Tinea is an infection of keratinized cutaneous tissues that is caused by a specific group of fungus known as dermatophytes. The arthrospores of these species can live in skin scales for up to a year.
Transmission occurs most frequently from person to person, followed by transmission from animals, and finally transmission from soil. Tinea capitis is a dermatophytic infection that affects the scalp and hair, and it is most commonly found around the age of children.
Tinea capitis can manifest itself in a variety of ways, including non-inflammatory scaling patches, scaling and broken-off hairs, or severe, painful inflammation with painful, swampy nodules that drain pus (kerion) and end in scarring alopecia, particularly in cases when there is secondary infection. The restoration of hair typically takes place after antifungal medication has been administered.
lesions (plural)
Scaling that is not caused by inflammation tends to manifest as diffuse or confined alopecia. The term "gray patch" refers to a condition that causes partial alopecia and is characterized by a circular form, relatively sharp borders, and fine scale. It is characterized by a large number of hairs that have broken off and a dull gray coating of arthrospores. The smaller patches eventually come together to form larger patches. Patients with dark hair may experience "black dot" lesions, which are broken-off hairs that are located close to the scalp and give the appearance of "dots" (swollen hair shafts). In most cases, the lesion is widespread and poorly defined, and there is a possibility that low-grade folliculitis is present.
Kerion and favus are inflammatory masses that are characterized by swampy, purulent, inflamed nodules and plaques. These masses are typically painful and drain pus from many holes, similar to honeycombs. Rather than breaking off, hairs fall out and can be tugged out without causing any discomfort. It is possible for follicles to expel pus, sinus development, and grains that resemble mycetoma. A thick crust is there, and the hairs that are close to it have matted. Most cases feature a single plaque, but when the entire scalp is affected, it is possible for several lesions to develop. A significant number of patients exhibit concomitant lymphadenopathy.
The presence of fungal hyphae can be determined through direct microscopy of the hair shaft (which is obtained by plucking), as well as through the collection of scalp scales using a brush that has been covered with a drop of potassium hydroxide (KOH).
The differential diagnosis consists of seborrheic dermatitis, psoriasis, atopic dermatitis, lichen simplex chronicus, alopecia areata, and chronic cutaneous lupus erythematosus. Additionally, impetigo, ecthyma, and crusted scabies are also considered in cases of kerion or favus.
The most effective oral antidermophytic drug is Systemic Terbinafine 250-mg tablet, which features an allylamine as its active ingredient. Alternatives include fluconazole pills of 100, 150, or 200 milligrams or oral suspensions of 10 or 40 milligrams per milliliter, as well as itraconazole capsules of 100 milligrams or oral solution of 10 milligrams per milliliter.
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Dermatology - Allergic Contact Dermatitis
(ACD) stands for allergic contact dermatitis.
The eczematous (papules, vesicles, and pruritis) systemic condition known as atopic dermatitis (ACD) is characterized by hapten-specific T cell–mediated inflammation that occurs after an individual comes into contact with a substance to which they have been sensitized. Sensitization can take place anywhere from weeks to months or even years after exposure. When sensitized T cells target the allergen that is being exposed, the result is that all of the skin becomes reactive to the allergen.
It takes at least two days after contact for the eruption to begin. Multiple exposures will eventually result in a crescendo reaction.
It is possible to have intense pruritus, stinging, and discomfort. Frequent fever is a possible symptom of severe responses.
lesions (plural)
Within a short period of time, well-defined, erythematous, and edematous lesions manifest themselves, accompanied by superimposed papules that are tightly spaced apart and nonumbilicated vesicles. Both bullae and confluent erosions, as well as crusts, could be present. Plaques of moderate erythema are found in subacute cases, and they are characterized by small, dry scales. Additionally, smaller, red, pointed or spherical, erythematous, hard papules and scales may also be present. The presence of satellite, small, hard, rounded or flat-topped papules, excoriations, and pigmentation are characteristics of lichenified plaques that are found in chronic individuals. In the beginning, lesions are confined to areas of contact and are frequently linear, with artificial patterns (also known as "outside job" for short). Eventually, the lesions might spread.
A history and a clinical examination are used to make a diagnosis. Both histopathology and the verification of the allergen through a patch test could be beneficial in this situation. Erysipelas, irritating contact dermatitis, atopic dermatitis, seborrheic dermatitis (face), psoriasis (palms and soles), epidermal dermatophytosis (KOH), fixed drug eruption, and phytophotodermatitis are all conditions that should be excluded.
It is important to identify and eliminate the allergen, and patients should be advised to avoid further exposure. Do not remove the caps of bigger vesicles; instead, drain them. Apply wet dressings by using cloths that have been soaked in Burow's solution and to change them every two to three hours. Glucocorticoid ointments and gels (classes I–III) should be applied topically, and adequate skin lubricants should be used.
(ACD) stands for allergic contact dermatitis.
The eczematous (papules, vesicles, and pruritis) systemic condition known as atopic dermatitis (ACD) is characterized by hapten-specific T cell–mediated inflammation that occurs after an individual comes into contact with a substance to which they have been sensitized. Sensitization can take place anywhere from weeks to months or even years after exposure. When sensitized T cells target the allergen that is being exposed, the result is that all of the skin becomes reactive to the allergen.
It takes at least two days after contact for the eruption to begin. Multiple exposures will eventually result in a crescendo reaction.
It is possible to have intense pruritus, stinging, and discomfort. Frequent fever is a possible symptom of severe responses.
lesions (plural)
Within a short period of time, well-defined, erythematous, and edematous lesions manifest themselves, accompanied by superimposed papules that are tightly spaced apart and nonumbilicated vesicles. Both bullae and confluent erosions, as well as crusts, could be present. Plaques of moderate erythema are found in subacute cases, and they are characterized by small, dry scales. Additionally, smaller, red, pointed or spherical, erythematous, hard papules and scales may also be present. The presence of satellite, small, hard, rounded or flat-topped papules, excoriations, and pigmentation are characteristics of lichenified plaques that are found in chronic individuals. In the beginning, lesions are confined to areas of contact and are frequently linear, with artificial patterns (also known as "outside job" for short). Eventually, the lesions might spread.
A history and a clinical examination are used to make a diagnosis. Both histopathology and the verification of the allergen through a patch test could be beneficial in this situation. Erysipelas, irritating contact dermatitis, atopic dermatitis, seborrheic dermatitis (face), psoriasis (palms and soles), epidermal dermatophytosis (KOH), fixed drug eruption, and phytophotodermatitis are all conditions that should be excluded.
It is important to identify and eliminate the allergen, and patients should be advised to avoid further exposure. Do not remove the caps of bigger vesicles; instead, drain them. Apply wet dressings by using cloths that have been soaked in Burow's solution and to change them every two to three hours. Glucocorticoid ointments and gels (classes I–III) should be applied topically, and adequate skin lubricants should be used.
