Low glucose in pleural effusion is seen in all except?
Rheumatoid ahritis
Empyema
Malignant pleural effusion
Dressler's syndrome
Causes of low pleural fluid sugar: Empyema Tuberculous pleural effusion Rheumatoid pleurisy Lupus pleuritis Malignant effusion Esophageal rupture
Pleural effusion & Pulmonary alveolar proteinosis