A gastrointestinal stromal tumor of the duodenum masquerading as a pancreatic head tumor.
Gastrointestinal stromal tumor (GIST) represents the most common kind of mesenchymal tumor that arises from the alimentary tract. GIST is currently defined as a gastrointestinal tract mesenchymal tumor showing CD117 (c-kit protein) positivity at immunohistochemistry. Throughout the whole length of the gastrointestinal tract, GIST arises most commonly from the stomach followed by the small intestine, the colorectum, and the esophagus. Only 3%-5% of GISTs occur in the duodenum, and especially, if GIST arises from the C loop of the duodenum, it can be difficult to differentiate from the pancreas head mass because of its anatomical proximity. Here, we report a case of duodenal GIST, which was assessed as a pancreatic head tumor preoperatively.
Kwon
Sung Ho
SH
Department of Internal Medicine, Ulsan University Hospital, 290-3, Jeonha-dong, Dong-gu, Ulsan 682-714, Korea.
Cha
Hee-Jeong
HJ
Jung
Seok-Won
SW
Kim
Byung-Chul
BC
Park
Jae-Serk
JS
Jeong
In-Du
ID
Lee
Jong-Hwa
JH
Nah
Yang-Won
YW
Bang
Sung-Jo
SJ
Shin
Jung-Woo
JW
Park
Neung-Hwa
NH
Kim
Do-Ha
DH
D003937:Diagnosis, Differential; D004379:Duodenal Neoplasms / Q000175:diagnosis* / Q000473:pathology; D046152:Gastrointestinal Stromal Tumors / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D010190:Pancreatic Neoplasms / Q000175:diagnosis* / Q000473:pathology; D013274:Stomach Neoplasms / Q000601:surgery; D014057:Tomography, X-Ray Computed