[Table/Fig-3]:

Investigations contributing to diagnosis of malignant and tubercular effusions

Group	Procedures	n/n [no. of patients showing positive results/no. of patients in whom test was performed](%)
Malignant pleural effusions	Positive malignant cells in pleural fluid	88/160(55%)
	Pleural biopsy	39/86(45.34%)
	CT guided FNAC	45/58(77.6%)
	Lymphnode FNAC	29/60(48.34%)
	FOB guided biopsy	11/13(84.6%)
Tubercular pleural effusion	Sputum smear for AFB	85/310 (27.4%)
	Pleural biopsy	90/145(62%)
	Lymph node FNAC	110/135(81.5%)
	Pleural fluid AFB staining	10/310(3.2%)
	Pleural fluid BACTEC culture	10/32(31.25%)
	BAL fluid AFB staining	5/38(13.15%)