title: Anorectal gastrointestinal stromal tumors: CT and MR imaging features with clinical and pathologic correlation.
abstract: OBJECTIVE
  The purpose of this study was to describe the imaging features of anorectal gastrointestinal stromal tumors with clinical and pathologic correlation.
  
  
  CONCLUSIONS
  Anorectal gastrointestinal stromal tumors are mesenchymal neoplasms that typically arise in the muscularis propria of the intestinal wall. The cross-sectional imaging appearance is that of a well-defined mural mass that may have an exophytic component and may invade adjacent structures. A prominent intraluminal component is a rare feature.
authors.affiliation: Department of Radiologic Pathology, Armed Forces Institute of Pathology, 6825 16th St., N.W., Washington, DC 20306-6000, USA. levya@afip.osd.mil
authors.forename: Angela D
authors.initials: AD
authors.lastname: Levy
authors.forename: Helen E
authors.initials: HE
authors.lastname: Remotti
authors.forename: William M
authors.initials: WM
authors.lastname: Thompson
authors.forename: Leslie H
authors.initials: LH
authors.lastname: Sobin
authors.forename: Markku
authors.initials: M
authors.lastname: Miettinen
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003937:Diagnosis, Differential; D005260:Female; D005770:Gastrointestinal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008648:Mesoderm / Q000000981:diagnostic imaging / Q000473:pathology; D008875:Middle Aged; D012004:Rectal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D012189:Retrospective Studies; D017154:Stromal Cells / Q000000981:diagnostic imaging* / Q000473:pathology*; D014057:Tomography, X-Ray Computed