Dermatology Clinic

The poor overall prognosis of ALM likely is due to a delayed diagnosis and not because it acts more aggressively than other melanomas.

Conditions to consider in the differential diagnosis of blastomycosis include cutaneous infections, inflammatory dermatoses, and neoplasms.

Most clinical manifestations of hereditary hemorrhagic telangiectasia are due to mucocutaneous telangiectases.

Patients describe sudden-onset or worsening dark pigmentation with androgen-dependent changes, such as thick hair growth or acne vulgaris.

Morphea is thought to result in vascular dysfunction, immune dysregulation, and extensive extracellular matrix formation.

Erythema dyschromicum perstans is generally considered an idiopathic disease, although medical conditions, infections, and exposure to certain chemicals have been associated with its development.

Tinea nigra appears as a brown to gray macule or plaque that is hyperpigmented and circumscribed.

The differential diagnosis of leishmaniasis can be broad, primarily due to considerable variation in presentation of the lesions.

A 48-year-old white man presents with papulosquamous cutaneous lesions that recently appeared on his chest, arms, and the dorsal aspects of his hands.

A 15-year-old white adolescent presents to the dermatology clinic with an asymptomatic rash on his upper back that has persisted for 4 months.