[Acute pleuro-pneumonitis resulting from leptospirosis]

We report a case of acute pneumonitis with pleural effusion and respiratory distress syndrome that was the inaugural sign of leptospirosis in a 37-year-old patient exposed to rat dejections at home. The patient was given penicillin and oxygen therapy with evacuation of the pleural effusion. Lung manifestations in leptospirosis usually occur as non-specific cough and hemoptysis. Pleural effusion is uncommon. Adult respiratory distress syndrome and profuse hemoptysis can also occur, requiring special care.