Fig. 1From: Th17 cells reflect colon submucosal pathologic changes in active eosinophilic granulomatosis with polyangiitisEndoscopic findings in the large intestine in patients with eosinophilic granulomatosis with polyangiitis (EGPA) (a–c) or chronic eosinophilic pneumonia (CEP) (d–f). Arrows show ulcer (A), erosion (B), dark red sign (C), and various red flares (D, E, F). The number in bright green indicated a region biopsied. EGPA patients had subjective symptoms related to the endoscopic findings in the lower digestive organs (e.g. abdominal pain, diarrhea, and blood in the stool), but there were no subjective symptoms in patients with CEPBack to article page