title: Magnetic resonance imaging of gastrointestinal stromal tumor in the abdomen and pelvis.
abstract: This study aimed to evaluate magnetic resonance (MR) imaging appearances of 11 gastrointestinal stromal tumors in the abdomen and pelvis and compared them with some histological findings. Gastrointestinal stromal tumor showed nonhomogeneous signal intensity and included hemorrhage in large tumors. Gastrointestinal stromal tumors showed a wide variety of enhancement, and contrast enhancement of the tumor was consistent with mitosis index as well as the largest diameter of the tumor. Contrast-enhanced MR imaging may be useful in the assessment of tumor activity.
authors.affiliation: Department of Radiology, Nippon Medical School, Tokyo 113-8603, Japan; Center for Advanced Medical Technology, Nippon Medical School, Tokyo 113-8603, Japan. ma-amano@mbj.nifty.com
authors.forename: Maki
authors.initials: M
authors.lastname: Amano
authors.forename: Takeshi
authors.initials: T
authors.lastname: Okuda
authors.forename: Yasuo
authors.initials: Y
authors.lastname: Amano
authors.forename: Takashi
authors.initials: T
authors.lastname: Tajiri
authors.forename: Tatsuo
authors.initials: T
authors.lastname: Kumazaki
mesh_terms: D034841:Abdominal Cavity; D000328:Adult; D000368:Aged; D003287:Contrast Media; D005260:Female; D046152:Gastrointestinal Stromal Tumors / Q000473:pathology*; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D010388:Pelvis
chemical_list: D003287:Contrast Media