title: A case of pulmonary artery sarcoma presented as cavitary pulmonary lesions.
abstract: Pulmonary artery sarcoma (PAS) is a rare, poorly differentiated malignancy arising from the intimal layer of the pulmonary artery. Contrast-enhanced chest computed tomography (CT) is a good diagnostic modality that shows a low-attenuation filling defect of the pulmonary artery in PAS patients. An 18-year-old man was referred to our hospital for the evaluation and management of cavitary pulmonary lesions that did not respond to treatment. A contrast-enhanced CT of the chest was performed, which showed a filling defect within the right interlobar pulmonary artery. The patient underwent a curative right pneumonectomy after confirmation of PAS. Although lung parenchymal lesions of PAS are generally nonspecific, it can be presented as cavities indicate pulmonary infarcts. Clinicians must consider the possibility of PAS as well as pulmonary thromboembolism in patients with pulmonary infarcts. So, we report the case with PAS that was diagnosed during the evaluation of cavitary pulmonary lesions and reviewed the literatures.
authors.affiliation: Department of Internal Medicine, Bundang CHA Medical Center, CHA University College of Medicine, Seongnam, Korea.
authors.forename: Daniel
authors.initials: D
authors.lastname: Min
authors.affiliation: Department of Internal Medicine, Bundang CHA Medical Center, CHA University College of Medicine, Seongnam, Korea.
authors.forename: Ji-Hyun
authors.initials: JH
authors.lastname: Lee
authors.affiliation: Department of Internal Medicine, Bundang CHA Medical Center, CHA University College of Medicine, Seongnam, Korea.
authors.forename: Hye-Cheol
authors.initials: HC
authors.lastname: Jeong
authors.affiliation: Department of Internal Medicine, Bundang CHA Medical Center, CHA University College of Medicine, Seongnam, Korea.
authors.forename: Jung-Hyun
authors.initials: JH
authors.lastname: Kim
authors.affiliation: Department of Internal Medicine, Bundang CHA Medical Center, CHA University College of Medicine, Seongnam, Korea.
authors.forename: Suk-Pyo
authors.initials: SP
authors.lastname: Shin
authors.affiliation: Department of Internal Medicine, Bundang CHA Medical Center, CHA University College of Medicine, Seongnam, Korea.
authors.forename: Hong-Min
authors.initials: HM
authors.lastname: Kim
authors.affiliation: Department of Internal Medicine, Bundang CHA Medical Center, CHA University College of Medicine, Seongnam, Korea.
authors.forename: Kyu Hyun
authors.initials: KH
authors.lastname: Han
authors.affiliation: Department of Internal Medicine, Bundang CHA Medical Center, CHA University College of Medicine, Seongnam, Korea.
authors.forename: Hye Yun
authors.initials: HY
authors.lastname: Jeong
authors.affiliation: Department of Internal Medicine, Bundang CHA Medical Center, CHA University College of Medicine, Seongnam, Korea.
authors.forename: Eun-Kyung
authors.initials: EK
authors.lastname: Kim
keywords: Pulmonary Artery; Pulmonary Infarction; Sarcoma
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