Radiographic diagnosis of a large inguinal hernia involving the urinary bladder and causing obstructive renal failure.

The urinary bladder may be involved in up to 4% of all inguinal hernias; however, usually only a small amount of the bladder is involved. Extensive bladder involvement is a rare event and may result in obstructive renal failure. We present a case of renal failure caused by a large inguinal hernia involving the urinary bladder and include selected computed tomography images documenting this interesting diagnosis.