In this case report there is a patient with erosion of the fourth lumbar (L4) vertebra due to an infrarenal abdominal aorta aneurysm, which was treated at the Souza Aguiar Municipal Hospital - Rio de Janeiro. The patient is a 51-year-old male, who has had back pain for about four years and a pulsating abdominal tumor. After the clinical examination, an abdominal computed tomography (CT) scan was carried out which showed a tortuous abdominal aorta with an infrarenal dilation of 8.5 cm in diameter and 3.0 cm of lumen. The CT scan also showed erosion of the fourth lumbar vertebra. The treatment consisted of aneurysmectomy of the abdominal aorta whith interposition of a tubular prosthetic graft (Dacron Uni-Graft® 24 mm). There were no complications in the postoperative follow-up.
Lumbar vertebrae; Erosion; Aortic aneurysm
