A 24-year-old woman presented with a six-year history of a recurring, somewhat painful and pruritic palmar rash that developed on either hand within minutes of exposure to water.

One month after starting a new chemotherapeutic drug, the patient sought treatment for painful peeling and redness on her hands and feet.

Five months of treatment with corticosteroids and antibiotics did not relieve the scaly plaques on a man's scalp, cheeks, trunk, genitals, and legs.

An otherwise healthy restaurant worker presented with pruritus, erythema, and wheals over the distal forearms and the dorsal...

A woman presented with erythematous plaques that waxed and waned throughout the year, but were more symptomatic in the summer.

A middle-aged woman with Grave's disease presented with asymptomatic, firm, nonpitting, flesh-colored nodules on her lower legs and feet.

A 44-year-old man presented with a pruritic, occasionally painful rash of several months' duration. Atrophic, purplish plaques were visible on the face, anterior and posterior trunk, and dorsum of both hands. The plaques had initially...

Six weeks after it appeared, this small red bump on the patient's right forearm had become an erythematous, crater-shaped nodule.

A woman with a history of type 2 diabetes presented with a recent onset of asymptomatic, shiny, waxy, round patches on her shins that turned from red to yellow.

A black adolescent is brought by his mother to the dermatology clinic with a four-month history of white spots on his face. The 14-year-old patient denies any preceding...