Table 4.

False-negative FNA.

Authors	False negative cases (%)	Total number of cases
Rosa et al. [39]	1.2%	1583
O'Malley et al. [12]	1.6%	1005
O'Neil et al. [24]	1.9%	697
Ishikawa et al. [25]	2.2%	382
Arisio et al. [29]	3.9%	1601
Day et al. [40]	5.4%	831
Feichter et al. [41]	9%	1003
Park and Ham [37]	10%	699