Gougerot–Blum syndrome

Gougerot–Blum syndrome (also known as "Pigmented purpuric lichenoid dermatitis," and "Pigmented purpuric lichenoid dermatitis of Gougerot and Blum") is a variant of Pigmented purpuric dermatitis, a skin condition characterized by minute, rust-colored to violaceous, lichenoid papules that tend to fuse into plaques of various hues. Relative to other variants, it is characterized clinically by a male predominance, pruritus, with a predilection for the legs, and histologically, it features a densely cellular lichenoid infiltrate.

It was characterized in 1925.