Table 3.

TB diagnostic test performance

Tuberculosis test	Sensitivity	Specificity
AFB on FNA (n=63)	8/28; 28.6% (13.2–48.7)	35/35; 100% (90.0–100)
FNA culture (n=28)	6/20; 30.0% (12.0–54.3)	8/8; 100% (63.1–100)
AFB on tissue (n=212)	26/69; 37.7% (26.3–50.2)	143/143; 100% (97.5–100)
Tissue culture (n=175)	24/55; 43.5% (30.3–57.7)	120/120; 100% (97.0–100)
Necrotizing granulomas on histology (n=213)	67/69; 97.1% (89.9–99.6)	142/144; 98.6% (95.1–99.8)
Ultra on FNA (n=93)	34/46; 73.9% (58.9–85.7)	46/47; 98.0 (88.7–100)
Ultra on tissue (n=186)	46/63; 73.0% (60.3–83.4)	116/123; 94.3% (88.6–97.7)

AFB = Acid-fast bacilli. FNA = fine-needle aspirate.