title: 18F-fluorodeoxyglucose positron emission tomography as a noninvasive method for the diagnosis of primary pulmonary artery sarcoma.
abstract: Pulmonary artery sarcomas are rare, difficult-to-diagnose tumors that frequently mimic chronic pulmonary thromboembolism. We report the cases of two female patients with clinical signs of dyspnea and lung masses associated with pulmonary artery filling defects on chest CT angiography. We performed 18F-fluorodeoxyglucose positron emission tomography, which revealed increased radiotracer uptake in those lesions. Pulmonary artery sarcoma was subsequently confirmed by anatomopathological examination. We emphasize the importance of this type of tomography as a noninvasive method for the diagnosis of these tumors.
authors.affiliation: Department of Pulmonology, InCor/Heart Institute, University of São Paulo School of Medicine Hospital das Clínicas, São Paulo, Brazil. meiradias@yahoo.com.br
authors.forename: Olívia Meira
authors.initials: OM
authors.lastname: Dias
authors.forename: Elisa Maria Siqueira
authors.initials: EM
authors.lastname: Lombardi
authors.forename: Mauro
authors.initials: M
authors.lastname: Canzian
authors.forename: José
authors.initials: J
authors.lastname: Soares Júnior
authors.forename: Lucas de Oliveira
authors.initials: Lde O
authors.lastname: Vieira
authors.forename: Mário
authors.initials: M
authors.lastname: Terra Filho
mesh_terms: D000368:Aged; D002908:Chronic Disease; D003937:Diagnosis, Differential; D005260:Female; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008875:Middle Aged; D049268:Positron-Emission Tomography / Q000379:methods*; D011651:Pulmonary Artery / Q000000981:diagnostic imaging*; D011655:Pulmonary Embolism / Q000175:diagnosis; D019275:Radiopharmaceuticals; D012509:Sarcoma / Q000000981:diagnostic imaging*; D019043:Vascular Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18