Abstract
A 67-year-old man was referred because of abdominal discomfort of 9 months' duration. There was no significant medical or surgical history. Digital rectal examination revealed a slightly firm mass. At colonoscopy, there was a yellowish submucosal tumor with normal overlying mucosa in the rectum at 5 cm from the anal verge (A). Catheter US probe EUS revealed a hypoechoic round mass confined to the submucosa (B). EMR was performed for accurate diagnosis and treatment. The gross specimen included a whitish small nodule covered by normal mucosa (C). Microscopic evaluat ion demonstrated a proliferation of uniform cells with scanty, pink granular cytoplasm and round to oval, stippled nuclei (D; H&E, orig. mag. x400). A histopathologic diagnosis of rectal carcinoid tumor was made. Since EMR, the patient has been asymptomatic. In Seop Jung, MD Joon Seong Lee, MD Chang Beom Ryu, MD Moon Sung Lee, MD Jin Oh Kim, MD Chan Sup Shim, MD Institute for Digestive Research Digestive Disease Center Soon Chun Hyang University College of Medicine Seoul, Korea
Published Version
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