Dermatologic Disorders

Urticarial rashes are common presentations in primary care. The specific causes are wide ranging, but it has been estimated that 20% to 30% of cases of chronic-type urticaria are due to physical urticaria. ...

Acquired digital fibrokeratoma, also known as acquired periungual fibrokeratoma or acral fibrokeratoma, is a benign fibroepithelial tumor.

Pemphigus vulgaris is a rare and potentially fatal autoimmune blistering disease with an incidence of 0.1 to 0.5 per 100,000 people per year. Like other autoimmune conditions, PV can be associated with an...

This patient’s case emphasizes the importance of a quality medical history and physical examination, especially if considering specialty or surgical consultation.

An 82-year-old man presented with a 6-year history of scalp lesions, which consisted of recurrent pustules, thick yellow-brown crusts, and inflamed eroded plaques overlying a healed graft site.

A 40-year-old white man presented with multiple flesh-colored lesions on the forehead that he had first noticed a year or so ago. The lesions were asymptomatic.

Guttate psoriasis is characterized by the acute onset of small, droplike, erythematous to salmon-pink papules, usually with a fine scale.

Lymphangioma circumscriptum is a benign lymphatic ectasia with 2 components: a clinically apparent dermal vascular component, and a not-so-apparent deep subcutaneous cisternal structure.

The clinical clue to the diagnosis is the patient’s well-demarcated plaque that remained unchanged.

A 44-year-old man presented with an asymptomatic mass on the left upper back. The mass had been first noted 4 to 5 years ago and had very slowly increased in size over time.