title: Intravascular large B-cell lymphoma involving gastrointestinal stromal tumor: a case report and literature review.
abstract: BACKGROUND
  Intravascular large B-cell lymphoma is a rare and aggressive lymphoma with a dismal prognosis. Synchronous intravascular large B-cell lymphoma involving gastrointestinal stromal tumor has not previously been documented.
  
  
  METHODS
  We report a case of a 61-year-old Chinese woman who presented with high fever of unknown origin for 20 days, and hematemesis, melena for 2 days. A computed tomography scan revealed a mass lesion located in the anterior wall of the stomach. Surgery was performed to remove the tumor and histopathology showed a gastrointestinal stromal tumor and a synchronous intravascular large B-cell lymphoma. The patient refused further treatment and died 4 months after surgery.
  
  
  CONCLUSIONS
  To the best of our knowledge, this case represents the first report of synchronous intravascular large B-cell lymphoma involving a gastrointestinal stromal tumor.
authors.affiliation: Department of Pathology, Guangdong General Hospital, Guangdong, Academy of Medical Science, Guangzhou, 510080, China. zhangfen5667@163.com.
authors.forename: Fen
authors.initials: F
authors.lastname: Zhang
authors.affiliation: Department of Pathology, Guangdong General Hospital, Guangdong, Academy of Medical Science, Guangzhou, 510080, China. lanx_luo@126.com.
authors.forename: Xinlan
authors.initials: X
authors.lastname: Luo
authors.affiliation: Department of Pathology, Guangdong General Hospital, Guangdong, Academy of Medical Science, Guangzhou, 510080, China. chenyu1104yuki@163.com.
authors.forename: Yu
authors.initials: Y
authors.lastname: Chen
authors.affiliation: Department of Pathology, Guangdong General Hospital, Guangdong, Academy of Medical Science, Guangzhou, 510080, China. yanh_liu@163.com.
authors.forename: Yanhui
authors.initials: Y
authors.lastname: Liu
mesh_terms: D005260:Female; D046152:Gastrointestinal Stromal Tumors; D006801:Humans; D016393:Lymphoma, B-Cell / Q000175:diagnosis / Q000473:pathology*; D008228:Lymphoma, Non-Hodgkin / Q000175:diagnosis / Q000473:pathology*; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000175:diagnosis / Q000473:pathology*; D011379:Prognosis; D013274:Stomach Neoplasms / Q000098:blood supply / Q000175:diagnosis / Q000473:pathology*; D014057:Tomography, X-Ray Computed / Q000379:methods