EU-TIRADS-Based Omission of Fine-Needle Aspiration and Cytology from Thyroid Nodules Overlooks a Substantial Number of Follicular Thyroid Cancers

Table 5

EU-TIRADS score-based indication of FNA related to tumor stage in the 10–20 mm size category.

Cancer type	n	TNM status		Pathological staging
		T1	T2–T4	Stage I	Stage II	Stage III	Stage IV
Papillary (n = 100)
FNA indicated	85	68	17	76	7	1	1
FNA not indicated	15	12	3	12	2	0	1
Follicular (n = 9)
FNA indicated	5	5	0	5	0	0	0
FNA not indicated	4	3	1	3	0	0	1
Medullary (n = 9)
FNA indicated	8	5	34	0	4	0
FNA not indicated	1	1	0	1	0	0	0
All (n = 118)
FNA indicated	98	75	23	73	8	1	16
FNA not indicated	20	16	4	16	2	0	2

EU-TIRADS, Thyroid Imaging Reporting and Data System of the European Thyroid Association [8].