Fig. 3From: Successful surgical intervention for rectal perforation due to polyarteritis nodosa: report of a case a, b A mixture of hematoma and abscess (arrows) in the rectal wall in hematoxylin-eosin (HE) staining (a magnification ×20; b magnification ×200). c Granulocytes and monocytes (highly magnified image in a small window) and fibrinous necrosis (arrow heads) in the vessel were observed in HE (magnification ×100)Back to article page