Nutcracker Syndrome Accompanying With Superior Mesenteric Artery Syndrome: A Case Report

The duodenum and the left renal vein (LRV) occupy the vascular angle made by the superior mesenteric artery (SMA) and the aorta. When the angle becomes too acute, compression of either structure can occur. Although superior mesenteric artery syndrome (SMAS) and renal Nutcracker syndrome (NCS) share the same pathogenesis, concurrent development has rarely been reported.

A 38-year-old female patient with a past history of gastrojejunostomy operated 6 years ago due to SMAS. She referred to vascular clinic with sever intermittent left-sided loin pain during the last 6 years. Computed tomography (CT)-angiogram and selective LRV angiogram with pressure gradient confirmed the diagnosis of NCS. She was treated by LRV transposition with uneventful recovery and considerable relief of symptoms.

NCS accompanying with SMAS is quite unusual. A patient, who first presents with clinical evidence of SMAS, could also simultaneously or sometime thereafter present with NCS and vice versa.