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

Table 3

EU-TIRADS-based indication of FNA. Both the EU-TIRADS score and nodule size influence the indication.

Largest diameter	Follicular cancer (n = 30)		Medullary cancer (n = 23)		Papillary cancer (n = 221)
	Number of lesions	FNA indicated, n (%)	Number of lesions	FNA indicated, n (%)	Number of lesions	FNA indicated^1, n (%)
≤10 mm	2	0 (0)	1	0 (0)	63	0 (0)
10–20 mm	9	5 (55.6)	9	8 (88.9)	100	85 (85.0)
>20 mm	19	19 (100)	13	13 (100)	58	58 (100)

EU-TIRADS, Thyroid Imaging Reporting and Data System of the European Thyroid Association. ¹According to the suggestions of the EU-TIRADS, FNA was considered indicated even if it was substantiated only on the presence of pathological lymph nodes.