title: Dumbbell-Mimicked Mediastinal Angiomatosis.
abstract: Angiomatosis is a nonneoplastic proliferative vascular lesion, which occurs mostly in diverse soft tissues. We observed a rare case of mediastinal angiomatosis with intraspinal invasion that mimicked a dumbbell tumor in a 63-year-old man with a history of prostate adenocarcinoma. A roentgenogram of the chest showed that the patient had left pleural effusion and a left paraspinal mass, computed tomography disclosed a low-density fusiform lesion over the left paraspinal region, and magnetic resonance imaging confirmed a large posterior mediastinal tumor with T4 intraspinal invasion. The tumor was completely excised through a laminectomy of the T3-5 spine, followed by thoracoscopic removal of the mediastinal part. The definitive diagnosis was angiomatosis. Surgical removal of such a dumbbell-mimicked tumor is mandatory because it may progress to spinal cord compression.
authors.affiliation: Division of Thoracic Surgery, Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan. Electronic address: ektang@mail2000.com.tw.
authors.forename: En-Kuei
authors.initials: EK
authors.lastname: Tang
authors.affiliation: Division of Thoracic Surgery, Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.
authors.forename: Ping-Teng
authors.initials: PT
authors.lastname: Chu
authors.affiliation: Division of Thoracic Surgery, Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.
authors.forename: Yih-Gang
authors.initials: YG
authors.lastname: Goan
authors.affiliation: Department of Pathology and Laboratory Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.
authors.forename: Pin-Pen
authors.initials: PP
authors.lastname: Hsieh
authors.affiliation: Department of Pathology and Laboratory Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.
authors.forename: Jung-Chia
authors.initials: JC
authors.lastname: Lin
mesh_terms: D000798:Angiomatosis / Q000000981:diagnostic imaging* / Q000473:pathology; D003937:Diagnosis, Differential; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008479:Mediastinal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D008875:Middle Aged; D014057:Tomography, X-Ray Computed