Giant isolated iliac artery aneurysm with ipsilateral hydronephrosis treated with aneurysm resection and extra-anatomic bypass.

Isolated iliac artery aneurysms are rare and very rarely it may lead to hydronephrosis. The majority of uncomplicated iliac artery aneurysms can be managed with endovascular interventions but large complicated iliac artery aneurysms with compression on adjacent structures may require open surgery. We share our experience of a case of a large isolated iliac artery aneurysm with compression of the ureter probably leading to ureteric calculi and hydronephrosis on the ipsilateral side. The patient was managed with aneurysm resection and extra-anatomic bypass. © Indian Association of Cardiovascular-Thoracic Surgeons 2021.