Korean J Gastrointest Endosc > Volume 35(5); 2007 > Article
Korean Journal of Gastrointestinal Endoscopy 2007;35(5): 332-336.
줄기를 형성한 위의 관외형 위장관간질종양 1예
고려대학교 의과대학 내과학교실, 소화기연구소
A Case of a Pedunculated Exoluminal Gastrointestinal Stromal Tumor in the Stomach
Young Jin Kim, M.D., Jai Hyun Choi, M.D., Eun Sun Kim, M.D., Dong Hun Lee, M.D., Nark-Soon Park, M.D., Ja Seol Koo, M.D., Sung Woo Jung, M.D., Hyung Joon Yim, M.D., Hong Sik Lee, M.D., Sang Woo Lee, M.D. and Ho Sang Ryu, M.D.
Department of Internal Medicine, Institute of Digestive Disease and Nutrition Korea University College of Medicine, Seoul, Korea
A 49-year-old man visited our hospital with a complaint of a left lower quadrant abdominal mass. Abdominal computed tomography (CT) showed an exophytic tumor attached to the stomach; the marginal region was intensely enhanced as seen on contrast imaging in the delayed phase. The gastric tumor was excised using a laparoscopic procedure. The gastric tumor was removed along with the gastric wall where the tumor was attached to by a pedicle. The external surface of the tumor showed a well-encapsulated appearance and several engorged vessels. Histologically, the tumor cells had a clear or eosinophilic cytoplasm and round nuclei. Four mitotic figures were seen per 50 cells on a high power field. Immunohistochemical staining demonstrated positive expression of c-kit, CD34, and vimentin and negative expression of smooth muscle actin (SMA) and S-100. The final diagnosis was a pedunculated exoluminal gastrointestinal stromal tumor (GIST). (Korean J Gastrointest Endosc 2007;35:332- 336)
Key Words: Gastrointestinal stromal tumor, External, Peduncle
주요어: 위장관간질종양, 외향성, 줄기
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