Localized cutaneous cryptococcosis in an immunosuppressed man.

Isolated cutaneous cryptococcosis developed in a 62-year-old white man with an idiopathic deficiency of T-lymphocytes. The patient was healthy, except for the cutaneous infection, and displayed no other evidence of an immunodeficiency disorder. An immunologic workup should be conducted in all patients with cryptococcal infection, regardless of their apparent health status.