gressive mesenchymal neoplasms, are responsible for less than 1% of all soft-tissue sarcomas. The incidence of these tumours is 2–3 cases per 1 000 000 annually. A small subset of these tumours may arise within a large vessel wall, and of the few reported cases, there seems to be a predilection for the pulmonary vasculature or the aortic wall. To our knowledge, angiosarcomas have not been descr...