[Traumatic complete isthmic rupture of horseshoe kidney]. / Rupture isthmique complete post-traumatique d'un rein en fer a cheval.

The authors report the case of a 14-year-old boy with complete isthmic rupture of a horseshoe kidney after a bicycle accident. The imaging diagnosis was difficult because of the presence of a massive retroperitoneal haematoma. However, sonography and CT should be sufficient to detect associated signs, such as malrotation of the renal hila and low-lying kidneys. Laparotomy was indicated because of the unstable haemodynamic state, allowing haemostasis and suture of the two isthmic sections.