Nodular vasculitis during Etanercept treatment-a) Erythematous tender nodule b) close-up view c)three months later
Nodular vasculitis is a skin condition characterized by crops of small, tender, erythematous nodules on the legs, mostly on the calves and shins.[1] Miroscopically there are epithelioid granulomas and vasculitis in the subcutaneous tissue, making it a form of panicullitis. Most of these cases are now thought to be manifestation of tuberculosis and indeed they respond well to anti-tuberculous treatment.[citation needed]