[Tuberculous chylothorax: case report and review of the literature].

Chylothorax is an unusual manifestation of tuberculous disease. Anecdotal cases of chylothorax due to Mycobacterium tuberculosis have been reported in the literature. We describe a case of tuberculous chylothorax and review the previously published cases. None of these cases was diagnosed by the application of polymerase chain reaction in pleural effusion. This test applied to different specimens has shown high specificity and sensitivity; for this reason, the routine use of this test, on pleural effusion, could be very useful, quick, and few aggressive in the diagnosis of tuberculous chylothorax, especially when chest X-ray is normal.