Left renal vein transposition using autologous gonadal vein graft in patient with combined anterior nutcracker and May-Thurner syndromes.

Anterior nutcracker syndrome (ANCS) and May-Thurner syndrome (MTS) are part of a rare group of vascular compression syndromes where extrinsic compression of arteries or veins results in non-specific clinical presentation posing diagnostic and management challenges. We present the case of a female patient in her early 40s with a 3 year history of left flank and pelvic pain, left leg swelling and microscopic haematuria attributed to a rare combination of ANCS and MTS. Compression of the left common iliac vein (MTS) was managed with left common iliac stenting and compression of the left renal vein (LRV; ANCS) was managed surgically with a novel modified technique of LRV transposition using an autologous gonadal vein graft with subsequent resolution of all symptoms. To our knowledge, this is the fourth case presenting the coexistence of the two syndromes in the literature and the first presenting the modified treatment approach.