Table 2.

Aggressive features by Bethesda category.

Aggressive Features	Bethesda III 199 Malignant	Bethesda IV 216 Malignant	p Value
Tall cell variant of PTC	6 (3.0)	4 (1.9)	0.34
Solid variant of PTC	7 (3.5)	1 (0.5)	0.013
Columnar cell variant of PTC	0 (0)	1 (0.5)	0.36
Diffusing sclerosing variant of PTC	0 (0)	0 (0)	-
Hobnail variant of PTC	3 (1.5)	1 (0.5)	0.21
Poorly differentiated thyroid carcinoma	2 (1.0)	4 (1.0)	0.59
ETE	2 (1.0)	1 (0.5)	0.43
LN+	17 (8.5)	10 (4.6)	0.036