Medical Term:

erythema elevatum diutinum

 

Definition: a rare chronic symmetrical eruption of flattened nodules of a pinkish or purplish color, occurring in plaques on the buttocks; Achilles tendons; and extensors of wrists, elbows, and knees, becoming fibrotic and finally scarring. Early lesions show necrotizing vasculitis with fibrinoid or lipid deposits in vessel walls.

Hide
(web5)