- Published on
Dermatology - Erythrasma
Erythasma is a result of the excessive proliferation of Corynebacterium minutissimum, a type of gram-positive bacillus known as a diphtheroid bacteria, which is often found on the surface of human skin. Overgrowth arises inside a humid environment, specifically in areas where there is occlusion and skin folds.
Erythasma typically lacks symptoms except for inconspicuous changes in coloration.
Abnormalities
The lesions are well-defined, evenly shaped spots that have a brown or pinkish color. Darker-skinned individuals may get postinflammatory hyperpigmentation. Maceration can occur in the interdigital areas of the foot.
The wood lamp inspection reveals a distinct red fluorescence, and the direct microscopy of skin scrapings using potassium hydroxide (KOH) does not show any presence of fungal microorganisms. The differential diagnosis encompasses intertriginous psoriasis, epidermal dermatophytosis, pityriasis versicolor, and Hailey-Hailey illness.
Advise patients to cleanse the affected area using benzoyl peroxide or sanitizing alcohol gel, and to ensure that the region remains dry to avoid the reappearance of the condition.
Erythasma is a result of the excessive proliferation of Corynebacterium minutissimum, a type of gram-positive bacillus known as a diphtheroid bacteria, which is often found on the surface of human skin. Overgrowth arises inside a humid environment, specifically in areas where there is occlusion and skin folds.
Erythasma typically lacks symptoms except for inconspicuous changes in coloration.
Abnormalities
The lesions are well-defined, evenly shaped spots that have a brown or pinkish color. Darker-skinned individuals may get postinflammatory hyperpigmentation. Maceration can occur in the interdigital areas of the foot.
The wood lamp inspection reveals a distinct red fluorescence, and the direct microscopy of skin scrapings using potassium hydroxide (KOH) does not show any presence of fungal microorganisms. The differential diagnosis encompasses intertriginous psoriasis, epidermal dermatophytosis, pityriasis versicolor, and Hailey-Hailey illness.
Advise patients to cleanse the affected area using benzoyl peroxide or sanitizing alcohol gel, and to ensure that the region remains dry to avoid the reappearance of the condition.
- Published on
Dermatology - Lymphangitis
Lymphangitis is an inflammation of the lymphatic vessels beneath the skin, which can be caused by bacterial, viral, or fungal diseases.
The location where entrance occurs is typically visible, and there is usually discomfort and/or redness in the surrounding area.
The lesions are characterized by red linear streaks and palpable lymphatic cords, which can be several centimeters wide. These streaks and cords run from the local lesion towards the regional lymph nodes. The lymph nodes are typically swollen and painful.
The presence of a sharp peripheral injury accompanied by proximal uncomfortable and painful red linear marks that extend towards nearby lymph nodes is indicative of the condition. If feasible, the microbial agent should be identified from the site of entrance.
Manage lymphangitis by administering systemic antibiotic therapy according to the specific causative organism.
Lymphangitis is an inflammation of the lymphatic vessels beneath the skin, which can be caused by bacterial, viral, or fungal diseases.
The location where entrance occurs is typically visible, and there is usually discomfort and/or redness in the surrounding area.
The lesions are characterized by red linear streaks and palpable lymphatic cords, which can be several centimeters wide. These streaks and cords run from the local lesion towards the regional lymph nodes. The lymph nodes are typically swollen and painful.
The presence of a sharp peripheral injury accompanied by proximal uncomfortable and painful red linear marks that extend towards nearby lymph nodes is indicative of the condition. If feasible, the microbial agent should be identified from the site of entrance.
Manage lymphangitis by administering systemic antibiotic therapy according to the specific causative organism.
- Published on
Dermatology - Raynaud's phenomenon
Raynaud phenomenon is a condition characterized by reduced blood flow to the fingers or toes, resulting in ischemia, which can be triggered by exposure to cold temperatures and/or mental stress. Vibration-induced injury can manifest in those who frequently utilize vibrating instruments, such as construction workers, butchers, typists, and pianists. Primary Raynaud phenomenon is characterized by the absence of an identifiable reason, whereas secondary Raynaud phenomenon is associated with an underlying disease as the causative factor. The causes of secondary Raynaud phenomenon include connective tissue diseases (such as scleroderma, lupus, dermatomyositis, vasculitis), atherosclerosis, thromboembolism, drugs and toxins including β-adrenergic blockers, ergotamines, and bleomycin, carpal tunnel syndrome, vibration injuries, cryoproteinemia, and cold agglutinins.
The fingers or toes exhibit blanching or cyanosis, which can be observed from the tip to different levels of the digits. The finger located beyond the area of reduced blood flow appears pale or cyanotic and has a lower temperature; the skin closer to the body looks rosy and has a higher temperature. Upon reheating the digits, the blanching may be substituted by cyanosis due to sluggish blood circulation. At the conclusion of the episode, the digits may regain their original color or exhibit a crimson hue, indicating the reactive hyperemic phase. Patients frequently have a continuous vasospasm instead of sporadic episodes. The skin undergoes trophic changes characterized by the development of tight, thin skin, pterygium formation, and clubbing and shortening of the terminal phalanges.
Acrogangrene is a condition that is not commonly seen, but it is frequently observed in individuals with Raynaud phenomenon that is caused by scleroderma. In such cases, the terminal phalanges may become separated or gangrene may develop, which can result in the fingertips being self-amputated.
The diagnosis is primarily based on clinical evaluation, with the key focus being the identification of any underlying etiology, particularly scleroderma.
Calcium channel blockers, anti-adrenergic medications, intravenous prostacyclin, bosentan (an endothelin receptor antagonist), and local botox injections are effective in avoiding episodes.
Raynaud phenomenon is a condition characterized by reduced blood flow to the fingers or toes, resulting in ischemia, which can be triggered by exposure to cold temperatures and/or mental stress. Vibration-induced injury can manifest in those who frequently utilize vibrating instruments, such as construction workers, butchers, typists, and pianists. Primary Raynaud phenomenon is characterized by the absence of an identifiable reason, whereas secondary Raynaud phenomenon is associated with an underlying disease as the causative factor. The causes of secondary Raynaud phenomenon include connective tissue diseases (such as scleroderma, lupus, dermatomyositis, vasculitis), atherosclerosis, thromboembolism, drugs and toxins including β-adrenergic blockers, ergotamines, and bleomycin, carpal tunnel syndrome, vibration injuries, cryoproteinemia, and cold agglutinins.
The fingers or toes exhibit blanching or cyanosis, which can be observed from the tip to different levels of the digits. The finger located beyond the area of reduced blood flow appears pale or cyanotic and has a lower temperature; the skin closer to the body looks rosy and has a higher temperature. Upon reheating the digits, the blanching may be substituted by cyanosis due to sluggish blood circulation. At the conclusion of the episode, the digits may regain their original color or exhibit a crimson hue, indicating the reactive hyperemic phase. Patients frequently have a continuous vasospasm instead of sporadic episodes. The skin undergoes trophic changes characterized by the development of tight, thin skin, pterygium formation, and clubbing and shortening of the terminal phalanges.
Acrogangrene is a condition that is not commonly seen, but it is frequently observed in individuals with Raynaud phenomenon that is caused by scleroderma. In such cases, the terminal phalanges may become separated or gangrene may develop, which can result in the fingertips being self-amputated.
The diagnosis is primarily based on clinical evaluation, with the key focus being the identification of any underlying etiology, particularly scleroderma.
Calcium channel blockers, anti-adrenergic medications, intravenous prostacyclin, bosentan (an endothelin receptor antagonist), and local botox injections are effective in avoiding episodes.
- Published on
Dermatology - X-linked Ichthyosis
X-linked ichthyosis is a genetic disorder that is inherited through the X chromosome and is characterized by a deficit in steroid sulfatase. This condition primarily affects boys and leads to the buildup of keratin on the skin, known as retention hyperkeratosis, while the growth of the outer layer of the skin remains normal.
The onset occurs shortly after birth.
20% of individuals with the illness experience cryptoorchidism. Age does not contribute to improvement, and the condition typically deteriorates in temperate areas, particularly during the winter season.
The presence of extensive, firmly attached scales that have a brown or soiled appearance is particularly prominent on the back of the neck, the outer surfaces of the arms, the inner elbows, the back of the knees, and the trunk. Palm, sole, and face are not affected. Comma-shaped stromal corneal opacities can be found in 50% of adult males' eyes. These opacities are asymptomatic and can also be present in certain female carriers.
The diagnosis is made based on the family history and clinical observations. Prenatal diagnosis can be achieved using amniocentesis and chorionic villus sample. The differential diagnosis encompasses all types of ichthyosis, including syndromic ichthyoses.
The most effective way to manage this is by hydrating the affected area through immersion in a bath, followed by the application of petrolatum. Urea-based creams effectively retain moisture in the outermost layer of the skin, known as the stratum corneum. A solution containing 44-60% propylene glycol in water, along with 6% salicylic acid in propylene glycol and alcohol, when applied under a plastic covering, will effectively hydrate the skin. However, caution should be exercised to avoid hypersalicylism.
Hydroxy acids, specifically lactic acid and glycolic acid, are able to regulate the process of scaling. Preparations that contain urea in concentrations ranging from 2% to 10% have proven to be helpful. Retinoids, namely isotretinoin and acitretin, have high efficacy; nonetheless, diligent monitoring for potential harm is necessary. Intermittent therapy may be necessary only for severe instances.
X-linked ichthyosis is a genetic disorder that is inherited through the X chromosome and is characterized by a deficit in steroid sulfatase. This condition primarily affects boys and leads to the buildup of keratin on the skin, known as retention hyperkeratosis, while the growth of the outer layer of the skin remains normal.
The onset occurs shortly after birth.
20% of individuals with the illness experience cryptoorchidism. Age does not contribute to improvement, and the condition typically deteriorates in temperate areas, particularly during the winter season.
The presence of extensive, firmly attached scales that have a brown or soiled appearance is particularly prominent on the back of the neck, the outer surfaces of the arms, the inner elbows, the back of the knees, and the trunk. Palm, sole, and face are not affected. Comma-shaped stromal corneal opacities can be found in 50% of adult males' eyes. These opacities are asymptomatic and can also be present in certain female carriers.
The diagnosis is made based on the family history and clinical observations. Prenatal diagnosis can be achieved using amniocentesis and chorionic villus sample. The differential diagnosis encompasses all types of ichthyosis, including syndromic ichthyoses.
The most effective way to manage this is by hydrating the affected area through immersion in a bath, followed by the application of petrolatum. Urea-based creams effectively retain moisture in the outermost layer of the skin, known as the stratum corneum. A solution containing 44-60% propylene glycol in water, along with 6% salicylic acid in propylene glycol and alcohol, when applied under a plastic covering, will effectively hydrate the skin. However, caution should be exercised to avoid hypersalicylism.
Hydroxy acids, specifically lactic acid and glycolic acid, are able to regulate the process of scaling. Preparations that contain urea in concentrations ranging from 2% to 10% have proven to be helpful. Retinoids, namely isotretinoin and acitretin, have high efficacy; nonetheless, diligent monitoring for potential harm is necessary. Intermittent therapy may be necessary only for severe instances.
- Published on
Dermatology - Pyogenic Granuloma
Pyogenic granuloma is a frequently occurring vascular lesion that typically develops quickly in response to modest injury.
A pyogenic granuloma is a vascular lesion that becomes degraded and bleeds either spontaneously or after minimal trauma. The lesion exhibits a sleek texture, either with or without scabs, and may or may not have erosion. The lesion manifests as a vivid red, dark red, purplish, or dark brown-black bump with an overgrowth of the outer layer of skin at the bottom. It can be found on the fingers, lips, mouth, torso, and toes.
The diagnosis is made based on clinical examination, and it is important to exclude the possibility of amelanocytic nodular cancer.
The recommended treatment involves surgically removing the affected area or using a technique called curettage with electrodesiccation at the base.
Pyogenic granuloma is a frequently occurring vascular lesion that typically develops quickly in response to modest injury.
A pyogenic granuloma is a vascular lesion that becomes degraded and bleeds either spontaneously or after minimal trauma. The lesion exhibits a sleek texture, either with or without scabs, and may or may not have erosion. The lesion manifests as a vivid red, dark red, purplish, or dark brown-black bump with an overgrowth of the outer layer of skin at the bottom. It can be found on the fingers, lips, mouth, torso, and toes.
The diagnosis is made based on clinical examination, and it is important to exclude the possibility of amelanocytic nodular cancer.
The recommended treatment involves surgically removing the affected area or using a technique called curettage with electrodesiccation at the base.
- Published on
Dermatology - Dysplastic Melanocytic Nevus
Dysplastic nevi (DN) are distinct acquired pigmented lesions characterized by the abnormal growth of melanocytes, which can potentially develop into superficial spreading melanoma. They can appear spontaneously or as a component of a compound melanocytic nevus. These nevi are clinically different from common acquired nevi, since they are larger, have more varied colors, asymmetrical outlines, and uneven borders. They also have distinct histologic findings.
Lesions typically develop in later infancy compared to common acquired nevomelanocytic nevi (NMN), which initially manifest in late childhood, shortly before puberty. Additional lesions persistently emerge over an extended period of time. While common moles typically exhibit a similar stage of growth in a certain area of the body, such as being junctional, compound, or dermal, dysplastic nevi (DN) tend to deviate from this pattern. For instance, DN may have a combination of large and small, flat and raised, tan, and extremely dark lesions.
The diagnosis is established through the clinical identification of characteristic and unique skin lesions, which are then further validated using dermoscopy. Once a diagnosis of DN is confirmed in a family member, it is advisable to also assess siblings, children, and parents for the condition. The differential diagnosis include congenital nevomelanocytic nevi, common acquired nevomelanocytic nevi (moles), superficial spreading malignant melanoma, melanoma in situ, lentigo maligna, Spitz nevus, and pigmented basal cell carcinoma.
Dysplastic nevus (DN) should be surgically removed with precise margins. The use of laser or other physical destruction methods should be avoided since they do not allow for histopathologic verification of diagnosis. It is crucial to closely monitor patients with DN in the context of familial melanoma, and it is essential to conduct regular photographic follow-up. It is important to educate patients about the distinct characteristics of DN, malignant melanoma, and typical acquired NMN as digital dermoscopy is the most dependable method. Advise patients to abstain from sunbathing or using tanning salons and to apply sunscreens while being exposed to the outdoors.
Dysplastic nevi (DN) are distinct acquired pigmented lesions characterized by the abnormal growth of melanocytes, which can potentially develop into superficial spreading melanoma. They can appear spontaneously or as a component of a compound melanocytic nevus. These nevi are clinically different from common acquired nevi, since they are larger, have more varied colors, asymmetrical outlines, and uneven borders. They also have distinct histologic findings.
Lesions typically develop in later infancy compared to common acquired nevomelanocytic nevi (NMN), which initially manifest in late childhood, shortly before puberty. Additional lesions persistently emerge over an extended period of time. While common moles typically exhibit a similar stage of growth in a certain area of the body, such as being junctional, compound, or dermal, dysplastic nevi (DN) tend to deviate from this pattern. For instance, DN may have a combination of large and small, flat and raised, tan, and extremely dark lesions.
The diagnosis is established through the clinical identification of characteristic and unique skin lesions, which are then further validated using dermoscopy. Once a diagnosis of DN is confirmed in a family member, it is advisable to also assess siblings, children, and parents for the condition. The differential diagnosis include congenital nevomelanocytic nevi, common acquired nevomelanocytic nevi (moles), superficial spreading malignant melanoma, melanoma in situ, lentigo maligna, Spitz nevus, and pigmented basal cell carcinoma.
Dysplastic nevus (DN) should be surgically removed with precise margins. The use of laser or other physical destruction methods should be avoided since they do not allow for histopathologic verification of diagnosis. It is crucial to closely monitor patients with DN in the context of familial melanoma, and it is essential to conduct regular photographic follow-up. It is important to educate patients about the distinct characteristics of DN, malignant melanoma, and typical acquired NMN as digital dermoscopy is the most dependable method. Advise patients to abstain from sunbathing or using tanning salons and to apply sunscreens while being exposed to the outdoors.
- Published on
Dermatology - Alopecia Areata
Alopecia areata refers to the specific loss of hair in circular or oval-shaped patches without any visible skin irritation. The procedure is non-scarring and preserves the integrity of the hair follicle, allowing for potential regeneration. Alopecia areata can be linked to autoimmune disorders. The age at which symptoms first appear is often during early adulthood, however it is possible for them to manifest at any stage of life.
Alopecia is a progressive condition characterized by stable patches of hair loss that may exhibit spontaneous recovery over several months. While some patches resolve, new ones may emerge.
Patients commonly experience significant distress regarding hair loss and the possibility of ongoing, gradual baldness. There is a possibility of some redness in the area where hair loss has occurred.
Lesions characterized by the presence of "exclamation mark" hairs are observed along the edges of places where hair loss has occurred, serving as a diagnostic feature.
These are truncated hairs with wider ends at the distal end compared to the proximal end. Alopecia can manifest as either isolated patches or as a complete absence of hair on the scalp, or as a widespread loss of hair on the body (including fine vellus hair). Scalp diffuse alopecia areata causes the hair to appear thinner and can be challenging to distinguish from pattern hair loss of telogen effluvium or hair loss due to thyroid disease. During the process of hair regrowth, the newly grown hairs tend to be thin and frequently appear white or gray in color.
The diagnosis is made based on clinical examination, while laboratory tests are done to exclude the possibility of lupus, syphilis, and tinea capitis. The differential diagnosis comprises white-patch tinea capitis, trichotillomania, early scarring alopecia, pattern hair loss, and secondary syphilis (alopecia areolaris) which presents as a "moth-eaten" appearance in the beard or scalp.
The treatment focuses on reducing the inflammatory infiltrate and inhibiting the growth factors produced by inflammation. However, there is presently no medication that can completely cure the condition. Psychological assistance from the dermatologist, family, and support groups is often the crucial role in managing the patient. While topical glucocorticoids are often ineffective, intralesional glucocorticoids provide brief effectiveness, and systemic glucocorticoids can stimulate regrowth, albeit momentarily, with associated long-term dangers.
Alopecia areata refers to the specific loss of hair in circular or oval-shaped patches without any visible skin irritation. The procedure is non-scarring and preserves the integrity of the hair follicle, allowing for potential regeneration. Alopecia areata can be linked to autoimmune disorders. The age at which symptoms first appear is often during early adulthood, however it is possible for them to manifest at any stage of life.
Alopecia is a progressive condition characterized by stable patches of hair loss that may exhibit spontaneous recovery over several months. While some patches resolve, new ones may emerge.
Patients commonly experience significant distress regarding hair loss and the possibility of ongoing, gradual baldness. There is a possibility of some redness in the area where hair loss has occurred.
Lesions characterized by the presence of "exclamation mark" hairs are observed along the edges of places where hair loss has occurred, serving as a diagnostic feature.
These are truncated hairs with wider ends at the distal end compared to the proximal end. Alopecia can manifest as either isolated patches or as a complete absence of hair on the scalp, or as a widespread loss of hair on the body (including fine vellus hair). Scalp diffuse alopecia areata causes the hair to appear thinner and can be challenging to distinguish from pattern hair loss of telogen effluvium or hair loss due to thyroid disease. During the process of hair regrowth, the newly grown hairs tend to be thin and frequently appear white or gray in color.
The diagnosis is made based on clinical examination, while laboratory tests are done to exclude the possibility of lupus, syphilis, and tinea capitis. The differential diagnosis comprises white-patch tinea capitis, trichotillomania, early scarring alopecia, pattern hair loss, and secondary syphilis (alopecia areolaris) which presents as a "moth-eaten" appearance in the beard or scalp.
The treatment focuses on reducing the inflammatory infiltrate and inhibiting the growth factors produced by inflammation. However, there is presently no medication that can completely cure the condition. Psychological assistance from the dermatologist, family, and support groups is often the crucial role in managing the patient. While topical glucocorticoids are often ineffective, intralesional glucocorticoids provide brief effectiveness, and systemic glucocorticoids can stimulate regrowth, albeit momentarily, with associated long-term dangers.
- Published on
Dermatology - Rosacea
Rosacea is a prevalent condition affecting around 10% of those with fair skin. It is characterized by persistent inflammation resembling acne, along with heightened sensitivity of the small blood vessels, resulting in redness and the appearance of visible blood vessels.
The age at which symptoms first appear is typically between 30 and 50 years, with a higher prevalence among women. The progression of the condition can be divided into three stages, each characterized by specific symptoms. In Stage I, there is a persistent redness of the skin and the appearance of small dilated blood vessels. In Stage II, in addition to the redness and blood vessels, there are also the presence of small raised bumps and pus-filled pimples. Stage III is characterized by a deeper redness, more prominent blood vessels, and the development of larger bumps, pimples, and nodules. In rare cases, there may also be persistent swelling in the central part of the face. Transition between stages is not always sequential, as there might be overlapping stages, and the course may commence with Stage II.
Typically, individuals with this condition experience a previous occurrence of reddening of the skin in reaction to heat stimulation in the oral cavity (such as hot beverages), spicy cuisine, alcoholic beverages, and exposure to sunlight. Patients frequently express apprehensions with their physical appearance, which can occasionally be misconstrued as indicative of alcoholism.
Abnormalities
A distinctive flushing of the face, characterized by a red coloration, may occur, either with or without the presence of small raised bumps known as papules and papulopustules, measuring 2-3 mm in diameter. The pustules typically measure less than or equal to 1 mm and are located on the top of the papules. There is an absence of comedones.
The individual has dispersed, separate lesions with telangiectases, characterized by red facies and dusky-red papules and nodules. Long-term cases of this condition result in the nose, forehead, eyes, ears, and chin being deformed due to an excessive growth of sebaceous glands and swelling of the lymphatic vessels. The lesions are symmetrically situated on the face and, infrequently, on the neck, chest (in a V-shaped region), back, and scalp.
The diagnosis is made based on clinical examination, and the possible conditions to consider are acne, perioral dermatitis, S. aureus infection, folliculitis, seborrheic dermatitis, excessive use of topical glucocorticoids, lupus, and dermatomyositis.
Apply metronidazole gel or cream, with a concentration of 0.75% or 1%, once or twice a day. Alternatively, use sodium sulfacetamide or sulfur lotions with concentrations of 10% or 5%. Topical antibiotics, such as erythromycin gel, are not as effective as oral antibiotics like minocycline or doxycycline, taken at a dose of 50-100 mg once or twice a day, or metronidazole at a dose of 500 mg twice a day. Tetracycline, although less potent, can still be beneficial. It is recommended to take 1-1.5 grams per day in many doses until symptoms improve. Once the symptoms have cleared, the dosage can be gradually reduced to a once-daily intake of 250-500 milligrams. Following the completion of the initial treatment, a regular dosage of 50 mg of minocycline or doxycycline per day, or 50 mg every other day, or 250-500 g of tetracycline, has proven to be helpful. In individuals with refractory disease, a low-dose treatment with isotretinoin, ranging from 0.1 to 0.5 mg/kg of body weight per day taken orally, is often successful for most people. However, in certain cases, a higher dosage of 1 mg/kg may be necessary. Rhinophyma and telangiectasia associated with chronic disease exhibit favorable response to surgical intervention or laser surgery.
Rosacea is a prevalent condition affecting around 10% of those with fair skin. It is characterized by persistent inflammation resembling acne, along with heightened sensitivity of the small blood vessels, resulting in redness and the appearance of visible blood vessels.
The age at which symptoms first appear is typically between 30 and 50 years, with a higher prevalence among women. The progression of the condition can be divided into three stages, each characterized by specific symptoms. In Stage I, there is a persistent redness of the skin and the appearance of small dilated blood vessels. In Stage II, in addition to the redness and blood vessels, there are also the presence of small raised bumps and pus-filled pimples. Stage III is characterized by a deeper redness, more prominent blood vessels, and the development of larger bumps, pimples, and nodules. In rare cases, there may also be persistent swelling in the central part of the face. Transition between stages is not always sequential, as there might be overlapping stages, and the course may commence with Stage II.
Typically, individuals with this condition experience a previous occurrence of reddening of the skin in reaction to heat stimulation in the oral cavity (such as hot beverages), spicy cuisine, alcoholic beverages, and exposure to sunlight. Patients frequently express apprehensions with their physical appearance, which can occasionally be misconstrued as indicative of alcoholism.
Abnormalities
A distinctive flushing of the face, characterized by a red coloration, may occur, either with or without the presence of small raised bumps known as papules and papulopustules, measuring 2-3 mm in diameter. The pustules typically measure less than or equal to 1 mm and are located on the top of the papules. There is an absence of comedones.
The individual has dispersed, separate lesions with telangiectases, characterized by red facies and dusky-red papules and nodules. Long-term cases of this condition result in the nose, forehead, eyes, ears, and chin being deformed due to an excessive growth of sebaceous glands and swelling of the lymphatic vessels. The lesions are symmetrically situated on the face and, infrequently, on the neck, chest (in a V-shaped region), back, and scalp.
The diagnosis is made based on clinical examination, and the possible conditions to consider are acne, perioral dermatitis, S. aureus infection, folliculitis, seborrheic dermatitis, excessive use of topical glucocorticoids, lupus, and dermatomyositis.
Apply metronidazole gel or cream, with a concentration of 0.75% or 1%, once or twice a day. Alternatively, use sodium sulfacetamide or sulfur lotions with concentrations of 10% or 5%. Topical antibiotics, such as erythromycin gel, are not as effective as oral antibiotics like minocycline or doxycycline, taken at a dose of 50-100 mg once or twice a day, or metronidazole at a dose of 500 mg twice a day. Tetracycline, although less potent, can still be beneficial. It is recommended to take 1-1.5 grams per day in many doses until symptoms improve. Once the symptoms have cleared, the dosage can be gradually reduced to a once-daily intake of 250-500 milligrams. Following the completion of the initial treatment, a regular dosage of 50 mg of minocycline or doxycycline per day, or 50 mg every other day, or 250-500 g of tetracycline, has proven to be helpful. In individuals with refractory disease, a low-dose treatment with isotretinoin, ranging from 0.1 to 0.5 mg/kg of body weight per day taken orally, is often successful for most people. However, in certain cases, a higher dosage of 1 mg/kg may be necessary. Rhinophyma and telangiectasia associated with chronic disease exhibit favorable response to surgical intervention or laser surgery.
- Published on
Dermatology - Keloids
Keloids and hypertrophic scars are excessive fibrous structures that form following a skin injury.
Keloids have protrusions that extend beyond the location of the initial damage, frequently resembling claw-like formations, whereas hypertrophic scars are limited to the original site of injury. Keloids can be aesthetically displeasing and present a significant challenge for patients when they are large and located on the ear, face, or near a joint. Keloids typically manifest in individuals during their third decade of life, however they can develop at any stage of adulthood. They exhibit a higher prevalence among those with darker skin tones and those with blood type A.
Keloids often do not cause any symptoms, however they may become itchy or unpleasant upon contact.
The lesions range from little papules to nodules to big tuberous lesions. Typically, they have a skin-colored appearance, however they can also be vivid red or bluish. They are characterized by their firm to hard texture and smooth surface. Following a traumatic or surgical injury, the resulting scars can exhibit a linear shape, while others may appear oval or spherical. Lesions are predominantly located on the earlobes, shoulders, upper back, and chest. Spontaneous keloids develop spontaneously without any external injury or surgical intervention, and typically manifest on the chest.
A clinical diagnosis is sufficient and a biopsy should only be considered if there is uncertainty in the clinical assessment, as it has the potential to produce further hypertrophic scarring. The differential diagnosis comprises dermatofibroma, dermatofibrosarcoma protuberans, desmoid tumor, scar with sarcoidosis, and foreign-body granuloma.
Managing the situation is difficult because there is no treatment that is significantly effective. Monthly administration of triamcinolone via intralesional injection (at a concentration of 10-40 mg/mL) can alleviate itchiness or sensitivity of the lesion, while also reducing its size and flattening it. It is important to note that this treatment is less effective for keloids compared to hypertrophic scars. Surgically removed lesions frequently have a bigger recurrence compared to the initial lesion. Surgical excision followed by rapid radiation yields favorable outcomes. Silicone creams and gels can provide advantages in the treatment of keloids, as they are both painless and noninvasive. Individuals with a predisposition to hypertrophic scars or keloids should be cautioned against undergoing cosmetic operations like ear piercing.
Keloids and hypertrophic scars are excessive fibrous structures that form following a skin injury.
Keloids have protrusions that extend beyond the location of the initial damage, frequently resembling claw-like formations, whereas hypertrophic scars are limited to the original site of injury. Keloids can be aesthetically displeasing and present a significant challenge for patients when they are large and located on the ear, face, or near a joint. Keloids typically manifest in individuals during their third decade of life, however they can develop at any stage of adulthood. They exhibit a higher prevalence among those with darker skin tones and those with blood type A.
Keloids often do not cause any symptoms, however they may become itchy or unpleasant upon contact.
The lesions range from little papules to nodules to big tuberous lesions. Typically, they have a skin-colored appearance, however they can also be vivid red or bluish. They are characterized by their firm to hard texture and smooth surface. Following a traumatic or surgical injury, the resulting scars can exhibit a linear shape, while others may appear oval or spherical. Lesions are predominantly located on the earlobes, shoulders, upper back, and chest. Spontaneous keloids develop spontaneously without any external injury or surgical intervention, and typically manifest on the chest.
A clinical diagnosis is sufficient and a biopsy should only be considered if there is uncertainty in the clinical assessment, as it has the potential to produce further hypertrophic scarring. The differential diagnosis comprises dermatofibroma, dermatofibrosarcoma protuberans, desmoid tumor, scar with sarcoidosis, and foreign-body granuloma.
Managing the situation is difficult because there is no treatment that is significantly effective. Monthly administration of triamcinolone via intralesional injection (at a concentration of 10-40 mg/mL) can alleviate itchiness or sensitivity of the lesion, while also reducing its size and flattening it. It is important to note that this treatment is less effective for keloids compared to hypertrophic scars. Surgically removed lesions frequently have a bigger recurrence compared to the initial lesion. Surgical excision followed by rapid radiation yields favorable outcomes. Silicone creams and gels can provide advantages in the treatment of keloids, as they are both painless and noninvasive. Individuals with a predisposition to hypertrophic scars or keloids should be cautioned against undergoing cosmetic operations like ear piercing.
- Published on
Dermatology - Sebaceous Hyperplasia
Sebaceous hyperplasia frequently occurs in elderly individuals, and these growths are frequently mistaken for tiny basal cell carcinoma. The condition is also seen in individuals who have received solid organ transplants and have been treated with cyclosporine.
The papules, measuring 1-3 mm in diameter, exhibit both telangiectasia and central umbilication. These objects are easily felt when touched and become more solid when pressed from the sides. It is frequently feasible to extract a minute droplet of sebum from the depressed area of the lesion.
The diagnosis is made based on clinical examination, and it is vital to consider basal cell carcinoma as a possible alternative diagnosis. Basal cell carcinoma typically presents as a firm nodule and does not produce sebum.
Sebaceous hyperplasias can be eradicated by light electrocautery.
Sebaceous hyperplasia frequently occurs in elderly individuals, and these growths are frequently mistaken for tiny basal cell carcinoma. The condition is also seen in individuals who have received solid organ transplants and have been treated with cyclosporine.
The papules, measuring 1-3 mm in diameter, exhibit both telangiectasia and central umbilication. These objects are easily felt when touched and become more solid when pressed from the sides. It is frequently feasible to extract a minute droplet of sebum from the depressed area of the lesion.
The diagnosis is made based on clinical examination, and it is vital to consider basal cell carcinoma as a possible alternative diagnosis. Basal cell carcinoma typically presents as a firm nodule and does not produce sebum.
Sebaceous hyperplasias can be eradicated by light electrocautery.
