Dissecting aneurysms of the thoracic aorta.

Twenty-eight cases of dissecting aneurysms of the thoracic aorta in patients with hypertension, syphilis, Marfan's syndrome and with unknown aetiology are analyzed with regard to the origins and extent of the dissection angiographically. The most common symptoms and evident radiological findings of the plain radiographs of the chest are stressed. The prognosis depends on the type of dissection.