By Noah S. Scheinfeld, MD, JD, Author at Clinical Advisor - Page 3

By Noah S. Scheinfeld, MD, JD

All articles by By Noah S. Scheinfeld, MD, JD

Cystic lesions on the hands

CASE #1The patient was a 65-year-old white woman who presented to the dermatology clinic with a nodule at the proximal interphalangeal (PIP) joint on the ring finger of her left hand. Her medical history included osteoarthritis and hypertension, both of which were well controlled on naproxen and hydrochlorothiazide, respectively. During history-taking, the patient reported trauma…

Two cases of lymphedema

A 40-year-old white man was hospitalized for a possible leg infection. Although the patient was not in pain, a history of recurrent leg infections had prompted his admission. The man was 5 ft 9 in tall and weighed almost 500 lb. Pebbly plaques that were hard to the touch manifested on his legs. The patient…

White eruptions on the penis

CASE #1A 40-year-old uncircumcised black man complained of a white rash he has had on his penis for several years.During that time, he noticed increased pain with sexual activity and occasional pain when he urinated. Tests for sexually transmitted diseases (STDs), including syphilis, chlamydia, gonorrhea, and HIV, were negative. A topical antifungal agent and dicloxacillin…

Sorting out oral striations

CASE #1 A 30-year-old West African immigrant presented with white lines in his mouth and purple pruritic scaly papules and nodules on his body. The papules and nodules had appeared suddenly on his entire body but not on his face. Blood chemistry was normal. Rapid plasma reagin testing and a hepatitis panel showed no evidence…

Two ichthyosiform eruptions

CASE #1 A 45-year-old man reported a generalized ichthyosis since early infancy (he is not sure if the eruption was present at birth). He has no history of bullae or vesicles. The patient has been taking acitretin (Soriatane) 25 mg daily since the late 1990s. Attempts to discontinue the acitretin left his skin redder, thick,…

Two reticulated eruptions

CASE #1 The patient was a 25-year-old woman who presented for treatment of a wart. During the examination, she was found to have vascular mottling, i.e., red macules surrounding areas of pallor, on her thighs and upper shins. The eruption was not painful and did not itch or burn. The patient thought the mottling had…

Two shiny, flat eruptions

CASE #1 An 18-year-old female complained of a rash around her umbilicus for the past several months. Recently she had developed a papular eruption on her body. Both eruptions were pruritic. During history-taking, she noted that her daily attire consisted of jeans with metal clasps and a belt with a large metal buckle. She had…

Two yellow-crusted eruptions

CASE #1 A 40-year-old man with a long history of atopic dermatitis and generalized lichen simplex chronicus noted rapid development of yellow-crusted patches superimposed on his atopic dermatitis. Microscopic examination showed gram-positive bacteria in clusters. A Tzanck smear and viral culture (read out days later) was negative. The patient stated that similar albeit more localized…

Hypopigmented head lesions

CASE #1 The patient was an 11-year-old Hispanic girl who had an area of hair loss on her scalp that measured 6 mm in length at its maximum. Born following an uncomplicated vaginal delivery, the child was noted at birth to have a scalp ulceration that, over the course of several days, became covered with…

Armloads of pigmentation

<img src="https://owqo93fpiuc4633lp1zthz57-wpengine.netdna-ssl.com/wp-content/uploads/sites/11/2018/12/dermlook1007case1.gif" CASE #1 A 25-year-old Mexican woman presented with ashy brown-blue macules that had developed on her arms and upper torso after puberty. She did not know whether the macules had ever been erythematous or had an erythematous border. Negative rapid plasma reagin testing ruled out late-stage pinta. Biopsy revealed a sparse lymphocytic dermal…

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