Table 4.

Relation between sonographic features of thyroid nodules and malignancy

		Total		Benign		Malignant
		n	%	n	%	n	%	p
Solid nature	Yes	99	71.7	80	70.2	19	79.2	0.374
	No	39	28.3	34	29.8	5	20.8
Hypoechogenicity	Yes	50	36.2	33	28.9	17	70.8	<0.001
	No	88	63.8	81	71.1	7	29.2
Microcalcification	Yes	31	22.5	19	16.7	12	50.0	<0.001
	No	107	77.5	95	83.3	12	50.0
Irregular margin	Yes	22	15.9	10	8.8	12	50.0	<0.001
	No	116	84.1	104	91.2	12	50.0
Loss of halo	Yes	67	48.6	58	50.9	9	37.5	0.233
	No	71	51.4	56	49.1	15	62.5