Case Report

A Case of Ileocecal IgG4-Related Sclerosing Mesenteritis Diagnosed by Endoscopic Ultrasound-Guided Fine Needle Aspiration using Forward-Viewing Linear Echoendoscope

Figure 7

(a) Contrast-enhanced MRI showing an irregular tumor in the left maxillary sinus (arrow). (b) Pathologically, diffuse lymphoplasmacytic infiltration and storiform fibrosis are observed (Hematoxylin-Eosin Stain, x200). (c) More than 50 IgG4-positive cells are observed in an HPF (IgG4 Stain, x400).
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