Dermatology

For the past 3 years, comedones, papules, pustules, and nodules had been erupting on the face of a 16-year-old boy. Acne vulgaris had been diagnosed. Topical tetracycline cream and oral tetracycline were used without success.

Painful erosions developed on the sole of a 14-year-old girl's foot several weeksearlier. Within the last few days, the condition has spread to the other sole.The patient is otherwise healthy and takes no medications. She enjoys playingsoccer and has no history of trauma.

Four pink nodules appeared in a linear array on the proximal extensor right forearm of a 77-year-old man. The asymptomatic lesions, which ranged from 0.5 to 1.0 cm in diameter, had been present for 2 months.

Is soaking the feet in an aluminum salt solution an effective therapy fordyshidrosis?

A 49-year-old woman was admitted tothe hospital with a high fever ofabrupt onset, rigor, headache, myalgias,and profound prostration. Hertemperature was 41ºC (105.8ºF);blood pressure, 60/40 mm Hg; respirationrate, 30 breaths per minute;and pulse rate, 130 beats per minute.

A 55-year-old woman had a 10-day historyof a nonproductive cough and apainful rash on both palms for 5 days.The eruption subsequently spreadover her entire body.

A pruritic, erythematous rash developed in a 6-year-oldboy over 5 days. The rash erupted in crops; the lesions appearedinitially as rose-colored macules, progressed rapidlyto papules and vesicles, and finally crusted (A). The distributionof the lesions-with the greatest concentrationon the trunk-is typical of chickenpox.

A generalized pruritic, vesicular eruption on an erythematousbase developed in a 34-year-old man. His palms andsoles were not involved

A 30-year-old man presented with a few-day history of aviral prodrome, including a low-grade fever, mild headache,muscle and joint aches, and malaise, accompaniedby a vesiculopapular rash. The mildly pruritic eruptionbegan on the head and neck and progressed within 36hours to the trunk and proximal extremities; the palmsand soles were spared.

A 40-year-old woman was concerned about an area of redness and tenderness on her left breast. Despite antibiotic therapy prescribed by another physician, the rash had progressed during the past month to erythema and nodules that involved the anterior chest and right breast.

A 65-year-old man with no significant medical history presented with mild abdominal pain-primarily in the left lower quadrant-and bleeding gums. He had a petechial rash over the entire body and hepatosplenomegaly 10 cm below the costal margin.

A 28-year-old white man presented with a recent-onset rash that involved the upper arms.

A 25-year-old black man was intermittently plagued with a mildly pruritic eruption on his chest and back only.

A 37-year-old black man was referred for dermatologic consultation pertaining to a pending legal proceeding.

A 16-year-old high school wrestler developed an acute, pruritic eruption involving both arms and a small portion of the chest.

A recently married 24-year-old black man was brought (reluctantly) by his wife for consultation regarding the perpetual "dirt" on his back.

A 16-year-old black girl complained of a gradually worsening facial eruption. She had been assured by her family physician that this was caused by an allergy to soap; she applied over-the-counter 1% hydrocortisone cream daily.

An intensely itchy dermatosis developed on the back of a 30-year-old Saudi Arabian renal transplant patient. The patient had never before experienced a similar eruption. He was taking prednisone and azathioprine to prevent transplant organ rejection, as well as amoxicillin for an upper respiratory tract infection.

A hyperpigmented macule on the submental surface disturbed this 56-year-old man.

A 54-year-old Asian woman complained of itching from a newly erupted rash.

Painful, erythematous plaques had erupted 4 to 6 weeks earlier on the left upper arm and lower abdominal wall of a 54-year-old woman.

A 46-year-old woman with type 1 diabetes mellitus presented to the emergency department with wheals, flares, and severe pruritus of her face and trunk.

A 25-year-old man presented with an erythematous, pruritic, scaly, macular rash that had begun behind his ears and spread over his neck, chest, trunk, and upper and lower extremities.

This patient has a 2-year history of red plaque with a yellow atrophic center on the leg, which has ulcerated over the past 3 months.

These velvety, hyperpigmented plaques are secondary to acanthosis nigricans, a common problem in patients with insulin-resistant states.