Figure 1From: Comparison of same day diagnostic tools including Gene Xpert and unstimulated IFN-γ for the evaluation of pleural tuberculosis: a prospective cohort study Patient flow and test results available for final diagnoses. $biopsy not performed (n = 1); *no fluid smear requested (n = 15); #liquid culture not requested, pleural fluid (n = 17) and pleural biopsy (n = 12); §indeterminate liquid culture: contamination (n = 1) and sample rejected (n = 1); ◊histology not requested (n = 1); □ADA measurements not requested (n = 9); †sample lost during processing (n = 1), ‡indeterminate Xpert MTB/RIFF result (n = 7).Back to article page