Case for Diagnosis. Presented by Dr. Ronald Rosanove (by invitation).
Summary of Data.—A 68-year-old white man was admitted to University Hospital on Jan. 4, 1956, with widely distributed skin lesions associated with painful joints in the left knee, right wrist, and right ankle. The face, scalp, neck, chest, and right buttock showed circular, oval, and elongated, erythematous papular indurated pea- to plum-sized crusted lesions. On the shoulders and upper back there were abscesses filled with blood and serum, without pus, surrounded by a narrow rim of brown pigmentation and many comedones.
These lesions began as small red papules on the occipital region of the head approximately 13 months prior to admission during medical treatment for pulmonary tuberculosis. Subsequently, similar lesions appeared on his neck and face and more widespread sites. The papules enlarged and became more erythematous, then slowly regressed. Treatment accelerated the regression, but subse