2019 Volume 61 Issue 5 Pages 1109-1114
A 67-year-old female was found to have an elevated lesion of about 15mm in size at the gastric body by gastrointestinal endoscopy which had not been recognized one year previously. Magnifying endoscopy with narrow-band imaging showed outgrowth of capillaries from the lesion. However, the microvascular patterns were regular. Endoscopic imaging suggested that the lesion was most likely a plasmacytoma. Endoscopic submucosal dissection was performed to confirm the diagnosis. Pathological examination of the resected specimen revealed invasion of plasma cells expressing kappa chain and lambda chain. This lesion did not meet the criteria of plasmacytoma. The endoscopic image of this case resembled the image of plasmacytomas. This case demonstrates the limit of endoscopic diagnosis.
