title: Primary gastrointestinal stromal tumor of the liver: a case report.
abstract: We report a case of primary gastrointestinal stromal tumor (GIST) of the liver. A 17-year-old man with a solid mass in the anterior segment of the right liver was asymptomatic with negative laboratory examinations with the exception of positive HBV. Contrast-enhanced ultrasound (CEUS) revealed a hypervascular lesion in the arterial phase and hypoechoic features during the portal and late phases. However, enhanced spiral computed tomography (CT) showed hypoattenuation in all three phases. Following biopsy, immunohistochemical evaluation demonstrated positive CD117. Different imaging features of primary GISTs of the liver are due to pathological properties and different working systems between CEUS and enhanced spiral CT.
authors: Department of Ultrasonography, Fuzhou General Hospital, Fuzhou, Fujian Province, China.
authors: Xiao-Li
authors: XL
authors: Luo
authors: Dan
authors: D
authors: Liu
authors: Jian-Jun
authors: JJ
authors: Yang
authors: Min-Wen
authors: MW
authors: Zheng
authors: Jing
authors: J
authors: Zhang
authors: Xiao-Dong
authors: XD
authors: Zhou
mesh_terms: D000293:Adolescent; D046152:Gastrointestinal Stromal Tumors / Q000175:diagnosis*; D006801:Humans; D008099:Liver / Q000473:pathology; D008113:Liver Neoplasms / Q000175:diagnosis*; D008297:Male; D010743:Phospholipids; D013459:Sulfur Hexafluoride; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography
chemical_list: D010743:Phospholipids; C420843:contrast agent BR1; D013459:Sulfur Hexafluoride