[The many causes of chronic pain in the groin].

One or more causes may be revealed underlying chronic pain in the groin. Knowledge of the complex anatomy of the groin may provide hints about the cause of the pain. In addition to clinical studies, imaging studies are often needed, with X-ray, ultrasonography and in particular MR imaging of the pelvis being the most important ones. The latter provides the best information on the structures of the groin region and the surrounding soft tissues. We present two rare causes of pain in the groin, the diagnosis of which was delayed due to insufficient imaging.