A 61-year-old man was admitted with a history of right upper quadrant and left iliac fossa pain and raised inflammatory markers. Initial investigations, including contrast-enhanced CT scan of the abdomen and pelvis, were reported as normal. Following readmission 2 months later with thoracolumbar back pain and recurrent fevers, an MRI showed T11/12 discitis and an adjacent mycotic aneurysm of the aorta. CT angiogram confirmed an 8 cm mycotic aneurysm. A second, more distal aneurysm was found located at the left common femoral artery. The aortic aneurysm was treated by antegrade stenting. The left common femoral artery aneurysm was excised. The patient was also treated with antibiotics. He made a good recovery and was well 8 months later apart from mild residual thoracolumbar spinal pain. To date, he has been followed up for 1 year and remains asymptomatic.