title: Extragastrointestinal stromal tumor of the mesoappendix: CT findings and a review of the literature.
abstract: BACKGROUND
  Gastrointestinal stromal tumors (GISTs) are nonepithelial, mesenchymal neoplasms that rarely occur in children.
  
  
  METHODS
  We present a unique case of a GIST that developed outside the gastrointestinal tract within the mesoappendix of a 6-year old boy. Computed tomography (CT) revealed a slightly lobulated, homogeneous soft-tissue mass, with marked contrast enhancement.
  
  
  CONCLUSIONS
  This case study provides new insight into the CT appearance of extragastrointestinal stromal tumors.
authors.affiliation: Department of Radiology, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 1665 Kong Jiang Road, Shanghai 200092, China. wenhuali@sjtu.edu.cn
authors.forename: Wenhua
authors.initials: W
authors.lastname: Li
authors.forename: Yanfen
authors.initials: Y
authors.lastname: Cui
authors.forename: Gang
authors.initials: G
authors.lastname: Ren
authors.forename: Jun
authors.initials: J
authors.lastname: Wang
authors.forename: Xiangru
authors.initials: X
authors.lastname: Wu
mesh_terms: D001063:Appendiceal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D002648:Child; D046152:Gastrointestinal Stromal Tumors / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D006801:Humans; D008297:Male; D019009:Proto-Oncogene Proteins c-kit / Q000032:analysis; D014057:Tomography, X-Ray Computed
chemical_list: D019009:Proto-Oncogene Proteins c-kit