The annular or circinate form of sarcoidosis of the skin described above is a striking clinical expression of the disease. The lesions occur particularly on the forehead, face, and nape of the neck.

A 30-year-old man presented with a circinate rash on his face, hands, and feet. A Venereal Disease Research Laboratory test was positive at a titer of 1:32, which confirmed a diagnosis of syphilis.

A 50-year-old man was admitted to the Second Dermatologic Clinic of the Department of Dermatologic Sciences, University of Florence, with a 10-year history of multiple, figured, asymptomatic lesions ...