Head and neck tuberculosis: 6-year retrospective study

Pulmonary involvement exists in 80% of cases of infection with Mycobacterium tuberculosis; however, in up to 20% of cases there may be extra-pulmonary involvement. In the ENT area, the most common site is cervical lymphadenitis, affecting approximately 95% of cases.

This was a retrospective study of patients attending an ENT department in a tertiary hospital for head and neck symptoms that were diagnosed with tuberculosis (TB), between December 2007 and December 2013.

The study included 73 patients, 41 (56.2%) males and 32 (43.8%) females (M/F ratio=1.28), with a mean age of 39.4 years (± 26.5 years; Min 1, Max 88). There were 53 (72.6%) cases of cervical lymphadenopathy, 11 (15%) of laryngeal tuberculosis 3 (4.1%) of hypopharyngeal tuberculosis, and six cases in other locations. Of the total, 14 (19.2%) patients were HIV positive and 10 (13.7%) had a history of contact with relatives who had suffered pulmonary tuberculosis. PCR was performed in 51 (69.8%) cases to confirm being positive, of which 47 (92.1%) cases were.

The similarity of tuberculosis to diseases of poor prognosis and the difficulty of its diagnosis make considering tuberculosis necessary when exploring patients with ulcerative or granulomatous ENT lesions. Analysing our results, the incidence of TB according to its ENT area location is similar to that reported in the literature. It is important to make special mention of the use of PCR in our study and the benefits that its implementation means for diagnosis.