[Rare complications of pulmonary artery aneurysm].

Report on an 80-year-old male with a sacculated, hazelnutsized, intrapulmonary arrosion aneurysm of the right pulmonary artery in the environment of an anthracotically indurated lymphatic node. Communication of the sacculation with the right bronchus of the lower lobe as well as with the oesophagus in final rupture of the aneurysm and fatal haemorrhage. Discussion of etiology and pathogenesis, differential diagnosis, diagnostics and therapy of aneurysms of the pulmonary artery.