title: CT features of pulmonary artery sarcoma: critical aid to a challenging diagnosis.
abstract: Pulmonary artery sarcoma is an uncommon and highly malignant neoplasm that presents a diagnostic challenge to radiologists due to its tendency to mimic the more common condition of pulmonary thromboembolism. Presented in this case report is a patient with pulmonary artery sarcoma who was initially diagnosed with saddle pulmonary embolism based upon computed tomography (CT) findings. The case emphasizes the importance of including pulmonary artery sarcoma in the differential diagnosis of a large filling defect in the pulmonary arteries when specific CT findings are identified in the appropriate clinical setting.
authors.affiliation: Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 N. Caroline Street, Room 3251, Baltimore, MD 21287, USA.
authors.forename: Svati
authors.initials: S
authors.lastname: Singla Long
authors.forename: Pamela T
authors.initials: PT
authors.lastname: Johnson
authors.forename: Ralph H
authors.initials: RH
authors.lastname: Hruban
authors.forename: Elliot K
authors.initials: EK
authors.lastname: Fishman
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D011651:Pulmonary Artery / Q000000981:diagnostic imaging* / Q000473:pathology*; D012509:Sarcoma / Q000000981:diagnostic imaging* / Q000473:pathology; D014057:Tomography, X-Ray Computed / Q000379:methods; D019043:Vascular Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology