A Case of a Pedunculated Exoluminal Gastrointestinal Stromal Tumor in the Stomach.
- Author:
Young Jin KIM
1
;
Jai Hyun CHOI
;
Eun Sun KIM
;
Dong Hun LEE
;
Nark Soon PARK
;
Ja Seol KOO
;
Sung Woo JUNG
;
Hyung Joon YIM
;
Hong Sik LEE
;
Sang Woo LEE
;
Ho Sang RYU
Author Information
1. Department of Internal Medicine, Institute of Digestive Disease and Nutrition Korea University College of Medicine, Seoul, Korea. kumcchj@ns.korea.ac.kr
- Publication Type:Case Report
- Keywords:
Gastrointestinal stromal tumor;
External;
Peduncle
- MeSH:
Actins;
Cytoplasm;
Diagnosis;
Eosinophils;
Gastrointestinal Stromal Tumors*;
Humans;
Middle Aged;
Muscle, Smooth;
Stomach*;
Vimentin
- From:Korean Journal of Gastrointestinal Endoscopy
2007;35(5):332-336
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
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).
