Retroperitoneal lipoma presenting with a nutcracker-like phenomenon is extremely rare. I experienced a case of a 65-year-old man presenting with left flank pain and macrohematuria intermittently for 3 years. Computed tomography revealed a lipoma at the left pedicle of the kidney, 30 mm in diameter, causing a curving of the left renal artery and dilatation of the left renal vein. This patient wa...

A 27-year-old man with good past health presented with a left varicocele. He had no urinary symptoms and urine microscopy did not show haematuria. Subsequent ultrasound scan showed a grossly distended left renal vein. The crosssectional view of magnetic resonance imaging (MRI) showed compression of the left renal vein between the superior mesenteric artery and the aorta, before the vein joins t...