Introduction
Nutcracker syndrome (NCS) is the symptomatic clinical condition in which
of left renal vein (LRV) becomes compressed usually between abdominal
aorta and superior mesenteric artery (SMA). NCS is important because
secondary chronic LRV hypertension may lead to chronic renal disease or
renal vein thrombosis (1). The most common cause of NCS is the short
distance between SMA and abdominal aorta (1-4). Other reported causes
are retroperitoneal pathologies as tumors or lymphadenopathies. Venous
causes are very rare but splenic vein enlargement has not been reported.
(1,3,5). NCS can happen at any age from childhood to seventh decade
(6-11) with peaking spread in middle age adults (10,11). In this case,
NCS is secondary to compression effect of enlarged splenic vein on LRV.