Published online Jun 21, 2013. doi: 10.3748/wjg.v19.i23.3693
Revised: April 8, 2013
Accepted: April 13, 2013
Published online: June 21, 2013
Core tip: We present a patient with polyarteritis nodosa (PAN) weakly positive for myeloperoxidase-anti-neutrophil cytoplasmic antibody and clinically mimicking nonocclusive mesenteric ischemia (NOMI), which occurred after treatment with pulsed methylprednisolone for mononeuritis multiplex. The present case is not only rare but also informative, because vasculitis in medium to small-sized arteries was shown to take a few months to develop tangible signs of visceral ischemia, which can occur even after treatment with pulsed methylprednisolone, and the imaging and surgical findings of intestinal necrosis caused by PAN may resemble those of NOMI.