Definitive diagnosis requires isolation of Mycobacterium tuberculosis by culture of sputum or body fluids or tissue. Presumptive diagnosis can be established with a positive sputum smear and a relevant clinical or radiological picture OR two positive sputum smears. If it is impossible to isolate Mycobacterium tuberculosis using microscopy or bacterial culture, other acceptable diagnostic techniques may be used. The Medical Officers in the Compensation Office will determine whether the diagnosis of Pulmonary Tuberculosis was made according to acceptable medical standards.