Immune complex disease and gynecomastia.

A man with arthritis, gynecomastia and a rash histologically showing leukocytoclastic vasculitis, dermatitis herpetiformis and immunoglobulin G deposits at the dermoepidermal junction is reported. In contrast to cases of systemic lupus erythematosus (SLE) associated with vesiculobullous eruptions and similar histological features, our patient had neither bullae nor serological evidence of SLE. Conversely, no men already reported had evidence of feminization. Thus, our case appears to be unique.