Table 2.

Overall and disease specific diagnostic yield of endobronchial ultrasound-guided transbronchial needle aspiration cytology

Final diagnosis in all patients (n=93)	Number of cases, n (%)	Overall yield, n (%)	Cyt (+) CB (−), n (%)	Cyt (−)* CB (+), n (%)	Cyt (+) CB (+), n (%)	Cyt (−) CB (−), n (%)
Malignancy	56 (60)	51 (91)	5 (9)	1 (2)	45 (80)	5 (9)
Lung cancer	50 (54)	46 (92)	5 (10)	1 (2)	40 (80)	4 (8)
Breast cancer	2 (2)	0	0	0	2 (100)	0
RCC	1 (1)	0	0	0	1 (100)	0
GCT	1 (1)	0	0	0	1 (100)	0
MDS	1 (1)	0	0	0	0	1 (100)
BC	1 (1)	0	0	0	1 (100)	0
Benign diseases	37 (40)	26 (70)	4 (11)	2 (5)	20 (54)	11 (30)
Tuberculosis	16 (17)	13 (81)	4 (25)	0	9 (64)	3 (22)
Sarcoidosis	14 (15)	11 (79)	0	2 (14)	2 (100)	-
Melioidosis†	2 (2)	2 (100)	-	-	0	2 (100)
NSIP	2 (2)	0	0	0	0	1 (100)
Vasculitis	1 (1)	0	0	0	0	1 (100)
Silicosis	1 (1)	0	0	0	0	1 (100)
Post-TB fibrosis	1 (1)	0	0	0
Total	93 (100)	77 (83)	9 (10)	3 (3)	65 (70)	16 (17)

*All cases those are cytology negative but cell block positive constitutes additional yield, ^†Melioidosis was diagnosed based on microbiological evidence in the aspirate and both cytology and cell block specimen showed necrotic material. N: Total number of study participants, n (%)-number percentage. Cyt (+): Cytology positive, CB (−): Cell block negative, RCC: Renal cell carcinoma, GCT: Germ cell tumor, MDS: Myelodysplastic syndrome, BC: Buccal carcinoma, NSIP: Nonspecific interstitial pneumonitis, TB: Tuberculosis