Pleural nocardiosis.

Pleural involvement in nocardiosis is rarely documented in India. We report two cases of pleural nocardiosis. In both the cases, the aetiologic agent was isolated from pleural fluid and was later identified as Nocardia asteroides in one case and as Nocardia brasiliensis in the second case. The former case of pyopneumothorax died before the diagnosis was made and the latter with pleural effusion showed excellent response to six months of therapy with trimethoprim-sulfamethoxazole.