Extra-Gastrointestinal stromal tumor of the pancreas with c-KIT gene mutation: Report of a case.
- Author:
Seon Tai KIM
1
;
Kwang Yeol PAIK
;
Jun Chul CHUNG
;
Dong Wook CHOI
Author Information
1. Departments of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. dwchoi@smc.samsung.co.kr
- Publication Type:Case Report
- Keywords:
Extra-Gastrointestinal stromal tumor;
pancreas;
c-KIT
- MeSH:
Esophagus;
Exons;
Female;
Fever;
Gallbladder;
Gastrointestinal Stromal Tumors;
Gastrointestinal Tract;
Head;
Humans;
Immunohistochemistry;
Intestine, Small;
Korea;
Mesentery;
Middle Aged;
Mitosis;
Omentum;
Pancreas*;
Proto-Oncogene Proteins c-kit;
Stomach;
Tomography, X-Ray Computed;
Urinary Bladder
- From:Korean Journal of Hepato-Biliary-Pancreatic Surgery
2007;11(1):63-66
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Mesenchymal tumors of the pancreas are quite rare, accounting for less than 1% of all pancreatic tumors. Mesenchymal tumors in the gastrointestinal tract are mainly gastrointestinal stromal tumors (GISTs). GISTs are defined as KIT-positive mesenchymal spindle cells or epithelioid neoplasms originating from the interstitial cell of Cajal. GISTs occur mainly in the stomach, small intestine, colorectum and esophagus. However, extra-gastrointestinal stromal tumors in the bladder, gallbladder, omentum, and mesentery are rare. We report a case of GIST in the pancreas head. A 55-year-old female patient was referred to our hospital for a pancreas head mass detected by a CT scan checked for a fever with an unknown origin. She underwent Whipple's operation for the 5.5x4.4cm-sized mass located in the pancreas head. A microscopic examination revealed GIST showing positive c-KIT protein expression with <5/50 HPF mitosis. C-KIT gene analysis revealed a mutation in exon 9. To the best of our knowledge, this is the first case of extra-gastrointestinal stromal tumor of the pancreas demonstrated by histology, immunohistochemistry and genetic analysis in Korea.
