Microscopic polyarteritis 2

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: 09/07/2010
Reviewed By: Mark James Borigini, MD, Associate Clinical Professor of Medicine, University of California, Irvine, Irvine, CA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.