Table 6.

Proportion of cases in which smear, liquid-based preparation and histology correctly distinguished specific tumor types^a

	22-gauge FNA			25-gauge FNB
Specific diagnosis	CS	LBP	Histology	CS	LBP	Histologyb
Adenocarcinoma	27/33	23/33	10/33	24/29	23/29	18/29
Metastasis	0/0	0/0	0/0	0/2	1/2	1/2
Neuroendocrine tumor	0/3	2/3	1/3	0/1	1/1	1/1
Pseudopapillary tumor	0/1	1/1	1/1	0/1	1/1	0/1
Total	27/37	23/37	12/37	24/33	26/33	20/33

FNA fine needle aspiration, FNB fine needle biopsy, CS conventional smear, LBP liquid-based preparation

^aOnly neoplastic cases are included

^bThe 25-gauge FNB group showed a better diagnostic yield in terms of specific tumor discrimination compared with the 22-gauge FNA group (P = 0.018)