title: F-18 FDG PET/CT in evaluation of pulmonary sclerosing hemangioma.
abstract: OBJECTIVE
  Pulmonary sclerosing hemangioma (PSH), or the alternative name of "sclerosing pneumocytoma," is a rare benign neoplasm. PSH is often asymptomatic and presents as a solitary pulmonary nodule on radiologic imaging studies. Few articles have been reported to describe the FDG PET findings about PSH. We reported FDG PET findings of 6 cases of PSH and reviewed the literatures.
  
  
  METHODS
  FDG PET and PET/CT imaging studies of 6 patients with proven PSH were reviewed. The relation between the degree of FDG uptake and tumor size was analyzed.
  
  
  RESULTS
  All 6 tumors were detected by FDG PET or PET/CT. Mean diameter of these tumors was 2.9 cm. Mean standard uptake value was 2.45 (range, 1.8-3.93). The maximal standard uptake value of FDG uptake was positively correlated with the tumor size (R = 0.9694, P < 0.05).
  
  
  CONCLUSIONS
  PSH demonstrates low to moderate uptake on FDG PET imaging. The larger PSH has higher uptake and might be misrecognized as a malignancy. The possibility of false-positive result caused by PSH should be considered while interpreting FDG PET images of solitary pulmonary nodules.
authors.affiliation: National PET/Cyclotron Center and Department of Nuclear Medicine, Taipei Veterans General Hospital and National Yang-Ming University Medical School, Taipei, Taiwan.
authors.forename: Ko-Han
authors.initials: KH
authors.lastname: Lin
authors.forename: Cheng-Pei
authors.initials: CP
authors.lastname: Chang
authors.forename: Ren-Shyan
authors.initials: RS
authors.lastname: Liu
authors.forename: Shyh-Jen
authors.initials: SJ
authors.lastname: Wang
mesh_terms: D000328:Adult; D005260:Female; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008297:Male; D008875:Middle Aged; D049268:Positron-Emission Tomography; D047868:Pulmonary Sclerosing Hemangioma / Q000000981:diagnostic imaging* / Q000473:pathology / Q000503:physiopathology; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed
chemical_list: D019788:Fluorodeoxyglucose F18