Left renal artery thrombosis in a 78-year-old patient with atrial fibrillation.

Renal artery thrombosis is a rare clinical condition. Often, there is a delay in diagnosis due to non-specific clinical complaints. We presented a woman with an elderly atrial fibrillation who developed thrombosis of the left renal artery. Despite the anticoagulant treatment given, patient did not benefit and the kidney was fully damaged.