[A case of tuberculosis pleuritis developing contralateral pleural effusion during anti-tuberculosis chemotherapy, falling into chronic respiratory failure].

The patient was a 74 year-old male presenting right pleural effusion with mild fever. His temperature was 37.0 degrees C. Culture of a pleural biopsy specimen revealed Mycobacterium tuberculosis, although culture of sputum and pleural effusion were negative. Therapy was begun with 300 mg of isoniazid (INH) per day, 600 mg of rifampicin (RFP) per day, and 1200 mg of pyrazinamide (PZA) per day. His temperature improved temporarily. One week after beginning of the therapy he had a fever over 38.0 degrees C. On the 17th day after starting chemotherapy, a chest radiological examination showed left pleural effusion in which numerous lymphocytes were found but Mycobacterium tuberculosis was negative. We assumed that the left pleural effusion was due to a paradoxical reaction to the anti-tuberculosis chemotherapy. After 3 days' discontinuation, the same regimen was resumed with an addition of prednisolone, but bilateral pleural effusion remained and the case finally fell into chronic respiratory failure.