RADIOLOGY: AORTA: Case# 33727: AORTIC ANEURYSM. Patient is 73 year old male with history of known thoracolumbar aortic aneurysm. Patient is status post repair of infrarenal portion of the AAA. Patient now presents with chest pain. 10/29/97 1. Large left tension pneumothorax. 2. Large thoracoabdominal aortic aneurysm as described above. No definite evidence of acute rupture. 11/04/97 IMPRESSION: 1. Aortic aneurysm. Dissection is present but there is no aneurysmal leak. Iliac arteries are spared. 2. Gallstones. 3. Small pleural effusion. 11/04/97 Chest CT 1. Dissecting aneurysm of the aorta, thoracic and abdominal aorta with demonstration of a true and false lumen with a large mural thrombus. 2. Pneumothorax on the left with bilateral pleural effusions and consolidative change in the left lower lube. 3. Pulmonary thromboembolism in the right main pulmonary artery.