Featured Derm Dx
A woman with a history of Hashimoto thyroiditis presents with hair thinning and an erythematous patch with vesiculation under her lip.
On receiving treatment for seborrheic keratosis on his back, another rash is noted on a man’s chest and abdomen. The other rash has not responded to steroid treatment in the past.
A 16-year-old high school football player presents with scattered flesh-colored papules, and he does not know if his girlfriend, other family members, or teammates has the same lesions.
A flesh-colored nodule is found on examination of a 42-year-old fair-skinned woman. She does not know how long it has been present.
A fair-skinned 48-year-old man with a history of ample sun exposure presents with dilated blood vessels, brownish hyperpigmentation, and thinning of the epidermis on his neck and upper chest.
A 50-year-old woman presents with a painful lesion on the inside of her upper lip. She has had similar lesions before, and they heal without scarring.
A 45-year-old moderately obese man presents with well-demarcated erythematous patches on the axillae and an erythematous patch with scale on his scalp.
A 53-year-old man presents with a well-demarcated zone of erythema about the umbilicus that has not responded to treatment with betamethasone dipropionate/clotrimazole cream, ketoconazole cream, or oral terbinafine.
An 87-year-old man presents with a 3-mm, flesh-colored papule on his nose. He has no history of skin cancer or of similar lesions.
A 22-year-old man presents with a pruritic rash that was diagnosed as scabies 3 weeks earlier. However, the rash has persisted despite treatment with oral ivermectin.
A farmer, aged 76 years, presents with a moderately pruritic rash on his chest that became worse when he used triamcinolone cream for 3 weeks.
A 28-year-old woman presents with a 3-week history of a minimally pruritic dermatitis involving her chest, back, and abdomen. It was initially diagnosed elsewhere as an “allergic reaction.”
A 59-year-old woman presents with a 3-month history of a growth on her forearm. She is a cigarette smoker and admits to both outdoor and indoor ultraviolet light exposure.
A 20-year-old college student tests negative for Lyme disease but is placed on doxycycline. She questions the treatment and why another Lyme titer has not been obtained.
A 3-month-old male presents with a waxy, yellowish 3-cm plaque located on his scalp since birth.
A 30-year-old woman presents with a 2-month history of a pruritic eruption on her legs and back.
A 52-year-old, HIV-positive man presents with penile lesions that have persisted despite treatment with acyclovir.
A 3-year-old boy presents with linear bands of slightly hypopigmented papules that follow the lines of Blaschko.