A mature (5.7kg) American conger eel (Conger oceanicus) was immobilized for diagnostic evaluation due to two weeks of anorexia and pale discoloration. While anesthetized, radiographs, ultrasound and bloodwork were collected. The eel was found to have an upper jaw injury and a fracture at the tip of the maxilla separating the upper jaws. The recent anorexia was likely due to the jaw fracture, and it was not known how that injury occurred. Fracture repair and stabilization would give the eel the best chance for healing and recovery.