Overview
Polyarteritis nodosa, seen here on a lower extremity, produces painful, erythematous nodules. Arteries in the deep dermis and upper fat show neutrophilic infiltration.
Review Date 5/9/2024
Updated by: Neil J. Gonter, MD, Assistant Professor of Medicine, Columbia University, NY and private practice specializing in Rheumatology at Rheumatology Associates of North Jersey, Teaneck, NJ. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.