Primary lingual tuberculosis: a case report.

Tuberculosis is very common in India and Southeast Asia, where the prevalence rate is about four per 1000 population and the incidence rate of the disease is two per cent. Fifteen per cent of the tuberculous population of the world reside in India. Both secondary and primary tuberculous lesions of the tongue and oral cavity are rare. We report a 60-year-old male with the seventh case of primary lingual tuberculosis.