title: Primary epithelioid angiosarcoma of the lung presenting as pulmonary hemorrhage.
abstract: Pulmonary angiosarcomas are usually secondary tumors, and only a few primary cases have been reported. We report a unique case of epithelioid angiosarcoma presenting as a solitary mass in the right upper lobe with pulmonary hemorrhage. Because of its epithelioid histology, this tumor may resemble a carcinoma or a variety of vascular lesions with epithelioid endothelial cells. Therefore, the diagnosis of epithelioid angiosarcoma should be based on immunohistochemical staining.
authors.affiliation: Department of Thoracic Surgery, Dicle University School of Medicine, Diyarbakir, Turkey. cozcelik@dicle.edu.tr
authors.forename: Cemal
authors.initials: C
authors.lastname: Ozcelik
authors.forename: Serdar
authors.initials: S
authors.lastname: Onat
authors.forename: Mehmet
authors.initials: M
authors.lastname: Yaldiz
authors.forename: Zerrin
authors.initials: Z
authors.lastname: Ozcelik
mesh_terms: D002637:Chest Pain / Q000209:etiology; D003371:Cough / Q000209:etiology; D003937:Diagnosis, Differential; D015622:Epithelioid Cells / Q000473:pathology*; D017809:Fatal Outcome; D006394:Hemangiosarcoma / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D006469:Hemoptysis / Q000209:etiology; D006470:Hemorrhage / Q000209:etiology*; D006801:Humans; D007150:Immunohistochemistry; D008168:Lung / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D008171:Lung Diseases / Q000175:diagnosis / Q000209:etiology*; D008175:Lung Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D035583:Rare Diseases; D014057:Tomography, X-Ray Computed