A Case of Rectal Cancer Discovered Following the Occurrence of a Stent-Graft Infection with Streptococcus gallolyticus after Thoracic Endovascular Aortic Repair

Abstract

A 79-year-old man was admitted for transurethral resection of a bladder cancer. He had a history of thoracic endovascular aortic repair for Stanford type B acute aortic dissection and thoracic aortic aneurysm performed 2 years prior. During hospitalization, computed tomography scan findings raised suspicion of a stent-graft infection. Blood cultures confirmed the presence of Streptococcus gallolyticus ssp. pasteurianus. Gallium scintigraphy supported the diagnosis of a stent-graft infection. A subsequent lower gastrointestinal endoscopy revealed a colorectal cancer in the lower rectum. We then performed surgery for the stent-graft infection.