title: Pulmonary artery sarcoma mimicking a pulmonary artery aneurysm.
abstract: Pulmonary artery sarcoma is an uncommon neoplasm, and its clinical and radiological presentation usually simulates chronic thromboembolic disease. We present the case of a 77-year-old woman admitted with dyspnea, chest pain, and hemoptysis. A chest computed tomographic scan showed moderate right-sided pleural effusion and a saccular dilatation of the interlobar portion of the right pulmonary artery, which was filled with contrast and surrounded by an irregular soft-tissue attenuation mass, suggesting a ruptured pulmonary artery aneurysm. The patient was operated on. Intraoperatively, a pseudoaneurysm and a solid mass were identified within the oblique fissure around the interlobar artery. Therefore, a right pneumonectomy was performed. Definitive pathologic examination was consistent with pulmonary artery sarcoma. The patient had a good outcome and is free of disease 2 years after surgery.
authors.affiliation: Advanced Thoracic Nucleus, Sírio-Libanes Hospital, São Paulo, Brazil. rmterra@uol.com.br
authors.forename: Ricardo M
authors.initials: RM
authors.lastname: Terra
authors.forename: Angelo
authors.initials: A
authors.lastname: Fernandez
authors.forename: Ricardo H
authors.initials: RH
authors.lastname: Bammann
authors.forename: Jader J M
authors.initials: JJ
authors.lastname: Junqueira
authors.forename: Vera L
authors.initials: VL
authors.lastname: Capelozzi
mesh_terms: D000368:Aged; D017541:Aneurysm, False / Q000175:diagnosis* / Q000601:surgery; D001707:Biopsy, Needle; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007150:Immunohistochemistry; D011013:Pneumonectomy / Q000379:methods; D011651:Pulmonary Artery / Q000473:pathology*; D018570:Risk Assessment; D012509:Sarcoma / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D013908:Thoracotomy / Q000379:methods; D014057:Tomography, X-Ray Computed / Q000379:methods; D016896:Treatment Outcome; D019043:Vascular Neoplasms / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery