PING-HUNG KUOYEUN-CHUNG CHANGLiou J.-H.JANG-MING LEE2021-03-192021-03-1920030040-6376https://scholars.lib.ntu.edu.tw/handle/123456789/554049The Klippel-Trenaunay syndrome (KTS) is a rare syndrome characterised by the triad of varicose veins, bony and soft tissue hypertrophy, and cutaneous haemangioma. A 30 year old man with KTS with a right mediastinal mass which progressively enlarged over 5 years is described. Computed tomography, magnetic resonance imaging, and bronchial angiography revealed a vascular lesion in the azygous area. After complete excision of the mass, histological examination revealed cavernous haemangioma. To our knowledge, this is the first report of intrathoracic haemangioma in KTS.[SDGs]SDG3adult; angioosteohypertrophy syndrome; article; case report; cavernous hemangioma; computer assisted tomography; contrast enhancement; histopathology; human; lung angiography; lung embolism; male; mediastinum tumor; nuclear magnetic resonance imaging; priority journal; soft tissue tumor; varicosis; vascular disease; Adult; Hemangioma, Cavernous; Humans; Klippel-Trenaunay-Weber Syndrome; Magnetic Resonance Imaging; Male; Mediastinal Neoplasms; Tomography, X-Ray Computedjournal article10.1136/thorax.58.2.183125549062-s2.0-0037312676