title: [Preoperational misdiagnosis of extragastrointestinal stromal tumors as ovarian cancer: report of three cases with literature review].
abstract: OBJECTIVE
  This report was to review how extragastrointestinal stromal tumor (EGIST) was similar to ovarian cancer, its differential diagnosis and treatment.
  
  
  METHODS
  Three cases of EGIST were reported and discussed by reviewing literatures.
  
  
  RESULTS
  The cases of EGIST were presented with peritoneal and pelvic mass, or ascites, diagnosed as ovarian cancer at first, and finally diagnosed as EGIST by pathological method and positive CD(117) and CD(34) expression. Surgery in combination with chemotherapy was an effective therapeutic method.
  
  
  CONCLUSIONS
  Clinical presentation of EGIST is similar to ovarian cancer in some aspects. Detection of CD(117) and CD(34) positive expression is helpful in the diagnosis of EGIST.
authors.affiliation: Department of Gynecological Oncology, Beijing Cancer Hospital, Beijing University, Beijing 100036, China.
authors.forename: Yu-nong
authors.initials: YN
authors.lastname: Gao
authors.forename: Guo-qing
authors.initials: GQ
authors.lastname: Jiang
authors.forename: Jing-xian
authors.initials: JX
authors.lastname: Liu
authors.forename: Wang-shu
authors.initials: WS
authors.lastname: Tang
authors.forename: Le-zhen
authors.initials: LZ
authors.lastname: Chen
mesh_terms: D000369:Aged, 80 and over; D018952:Antigens, CD34 / Q000235:genetics / Q000378:metabolism; D003951:Diagnostic Errors; D005260:Female; D046152:Gastrointestinal Stromal Tumors / Q000175:diagnosis* / Q000235:genetics / Q000378:metabolism / Q000601:surgery; D006801:Humans; D008875:Middle Aged; D010051:Ovarian Neoplasms / Q000175:diagnosis* / Q000235:genetics / Q000378:metabolism / Q000601:surgery; D057234:Preoperative Period; D019009:Proto-Oncogene Proteins c-kit / Q000235:genetics / Q000378:metabolism
chemical_list: D018952:Antigens, CD34; D019009:Proto-Oncogene Proteins c-kit