Abstract number: r2219

Hashemi  P., Razmpa  E.

Objectives:
Salivary gland involvement is included among the les commonly encountered forms of cervicofacial tuberculosis. However, since the incidence of extrapulmonary tuberculosis at all sites has been increasing steadily since 1985, the diagnosis of Mycobacterium tuberculosis must enter into the differential diagnosis. In this study, the frequency of tuberculosis and its distribution according to sex and type of gland has been determined.

Methods:
This is a retrospective case series study and the data were collected through observation of the files of the patients that were operated during 1996–2003 in Imam And Amir Aalam hospital due to salivary gland mass. There are no exclusion criteria.

Results:
Overall, 164 patients had salivary gland mass resection between 1996–2003.Among them, 5 cases of salivary gland mycobacterium infection were reported. Four cases (80%) were in submandibular gland and the last one (20%) was in parotid gland. Mean age was 37/4 (SD: 9/09), the minimum of age was 25 and the maximum was 49. All the patients were female and midwife. Malignancy was seen in 36 patients (23/4%). Mean age in malignancy was 48 and that of nonmalignant was 38/3. This difference was statistically significant (p = 0/01). Mixed tumour was the most prevalent diagnosis among the population.

Conclusion:
At present study, the frequency of mycobacterium salivary gland infection was 3/2%. In a study done in 1993, this was 2/3which is not statistically significant. In other studies, almost all the cases were in parotid gland; whereas in our study 4 out of 5 were in submandibular gland. These results need to be proved by other prospective studies.