BACKGROUND AND AIM: NOWADAYS, TUBERCULOSIS (TB) IS ONE OF THE MOST IMPORTANT INFECTIOUS DISEASES AND IS ONE OF THE PRIORITIES OF THE WORLD HEALTH ORGANIZATION. IF TB INFECTION IS NOT PRIMARILY LOCATED IN THE LUNGS, IT IS CALLED EXTRA-PULMONARY TB (EPTB). SINCE KNOWING SOME INFORMATION ABOUT THESE TWO FORMS OF TB IS REQUIRED TO PREVENTION AND CONTROL OF THE DISEASE, IN THIS STUDY WE HAVE INVESTIGATED THE PREVALENCE OF THE PULMONARY TB (PTB) AND EPTB IN PATIENTS REFERRED TO THE REGIONAL TUBERCULOSIS REFERENCE LABORATORY IN ISFAHAN….