<prompt> Tuberculous pleural effusion is characterised by all of the following features except effusion :Harmorrhagic effusionPleural fluid LDH more than 60 that of serum LDH.Increased deaminaseIncreased mesothelial cells  <response>: Answer is D Increased Mesothelial cells: Presence of Mesothelial cells 5 make diagnosis of Tubercular effusion unlikely Characteristics of Tuberculous effusion Exudative Proteins increased Pleural fluid protein Serum protein 0.5 Pleural fluid LDH increased P. Fluid LDH Serum LDH 0.6 Haemorrhagic Glucose: equal to serum levels; occasionally 60 mgdi WBC count increased: predominant y small lymphocytes High levels of TB markers in pleural fluid Adenosine deominase 45 IUL Interferon V 140 pgmI Positive PCR for tuhercuthr DNA Eosinophils 10 or mesothelial cells 5 make diagnosis of tubercular effusion unlikely. 