title: Characteristics of 18F-fluorodeoxyglucose uptake in anastomotic sinus and fistula following rectal cancer surgery.
abstract: OBJECTIVE
  To assess the characteristics of 18F-fluorodeoxyglucose (FDG) uptake in persisting anastomotic sinus and fistula following rectal cancer surgery.
  
  
  METHODS
  Eight patients with anastomotic sinus and fistula were retrospectively studied.
  
  
  RESULTS
  A total of 13 anastomotic sinuses (n=11) and fistulas (n=2) were observed. Sixteen FDG-positron emission tomography/computed tomography studies for 13 lesions performed and 26 uptake patterns were evaluated. Twenty-one lesions were found to have diffuse increased uptake, whereas four lesions had focal uptake. There was only one lesion without FDG uptake.
  
  
  CONCLUSIONS
  Increased FDG uptake is frequently observed in anastomotic sinus and fistula, which should be known to avoid making wrong diagnosis.
authors.affiliation: Department of Nuclear Medicine, Eulji University Hospital, 96 Dunsanseoro, Seo-gu, Daejeon, 35233, Republic of Korea. Electronic address: canlive78@hanmail.net.
authors.forename: Yun Hee
authors.initials: YH
authors.lastname: Kang
authors.affiliation: Department of Radiology, The Catholic University of Korea, Daejeon Saint Mary's Hospital, 64, Daeheung-ro, Jung-gu, Daejeon, 34943, Republic of Korea. Electronic address: geonpark@catholic.ac.kr.
authors.forename: Geon
authors.initials: G
authors.lastname: Park
mesh_terms: D057868:Anastomotic Leak / Q000000981:diagnostic imaging*; D005260:Female; D005402:Fistula; D019788:Fluorodeoxyglucose F18 / Q000493:pharmacokinetics*; D006801:Humans; D008297:Male; D008875:Middle Aged; D000072078:Positron Emission Tomography Computed Tomography; D019275:Radiopharmaceuticals / Q000493:pharmacokinetics*; D012003:Rectal Fistula / Q000000981:diagnostic imaging*; D012004:Rectal Neoplasms / Q000601:surgery*; D012189:Retrospective Studies
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18
keywords: 18F-fluorodeoxyglucose; Anastomotic leakage; Positron emission tomography/computed tomography; Presacral sinus; Rectal cancer