Intra-abdominal Mass, Obstructive Jaundice, and Eosinophilia.

Eosinophilic granulomatosis with polyangiitis(EGPA) is a systemic vasculitis syndrome associated with eosinophilia, which most commonly involves the lung, skin, cardiovascular, gastrointestinal, renal, and peripheral nervous systems (PNS). We report a case of a 48-year-old man presented as obstructive jaundice caused by intra-abdominal mass, and he also had elevated peripheral eosinophils. The pathological features of the mass included vasculitis and eosinophils infiltration. At first he was diagnosed as EGPA and treated by glucocorticoid and cyclophosphamide. The patient did not get complete response after six months and then the repeat biopsy proved that he had non-Hodgkin's lymphoma.