WITHIN fifteen months three patients with unsuspected rib fracture were referred to Enniskillen Chest Clinic because of chest symptoms. The first rib was fractured in two cases, and the tenth rib in the remaining one. All fractures were on the right side. Two case histories are given: (1) Miss M. McA., aged 32, consulted her doctor because of violent cough and acute chest pain, diagnosed as rig...