[A case of pulmonary tuberculosis associated with adult respiratory distress syndrome during corticosteroid treatment of rheumatoid arthritis].

We reported a case of 64 year-old female patient of pulmonary tuberculosis associated with ARDS during corticosteroid treatment of Rheumatoid Arthritis. On admission her chief complaints were fever, fatigue and dyspnea. A chest roentgenogram showed diffuse alveolar infiltration consistent with pulmonary edema. Arterial blood gas studies showed severe hypoxemia. We clinically diagnosed so-called ARDS. Smears of sputum for acid fast bacilli were negative, but transbronchial lung brushing by bronchofiberscope revealed many acid fast bacilli. Intensive therapy with anti-tuberculosis drugs (INH, RFP, SM), high dose corticosteroid (methylprednisolone) therapy and mechanical ventilation was started. During the following 2 weeks, the PaO2 rose gradually and the alveolar infiltration on the chest roentgenogram disappeared. The experience of this case to emphasized the importance of suspecting this condition because pulmonary tuberculosis is a potentially curable cause of ARDS and it should also be emphasized that the good treatment effect could be expected with combined use of high dose corticosteroid and mechanical ventilation.