Another 'rim sign'. A patent processus vaginalis demonstrated by peritoneal Tc-99m sc scintigraphy

The rim sign Is usually associated with a missed testicular torsion. Here, a rim sign was demonstrated during peritoneoscintigraphy, in a case of an indirect Ingulnal hernia. Activity was found not only along the inguinal canal, but also around the testicle due to a large patent processus vaginalis. An intravenous injection of Tc-99m pertechnetate helped evaluate the respective size of the right and left sides of the scrotum.