An unusual case of livedoid and necrotic lesions in a drug addict.

Skin biopsies were performed in a patient with livedoid and necrotic lesions of the forearm. Periodic acid-Schiff-stained and birefringent Maltese cross-patterned foreign bodies were observed in capillary vessels. It was consistent with the diagnosis of intra-arterial injections of a substance containing corn starch.