Table 2.

Presurgical ultrasonographic findings and histopathologic features of subacute thyroiditis patients with papillary thyroid cancer

Cases	Op.Time(mo)	Nodule size in USG (cm)∗	Sonographic features of nodules	FNAB	Tumor subtype/Histology	Tumor size (cm)	Stage (8th TNM)	Treatment
1	107	0.55 and 0.50	Hypoechoic, indefinite margins	Suspicious for malignancy	Papillary-tall cell and classical Focal fibrosis	0.5 and 0.05	I	TT+RAI
2	13	2.4 and 1.0	Hypo-isoechoic, calcification	Dyskaryotic thyrocytes	Papillary-classical Chronic lymphocytic thyroiditis	1.0	I	TT+RAI
3	29	0.7	Hypoechoic, microcalcification	FLUS Suspicious for malignancy	Papillary-follicular variant Fibrosis, chronic lymphocytic thyroiditis	0.6	I	TT
4	16	1.9	Isoechoic	Suspicious for malignancy	Papillary-follicular variant Fibrosis, focal follicular atrophy	0.4	I	Lobectomy
5	13	1.1 and 0.73	Isoechoic, microcalcification	Suspicious for malignancy	Papillary-classical and follicular	1.1, 0.7, 0.3, 0.2	I	TT+ RAI
					Fibrosis, chronic lymphocytic thyroiditis
6	37	1.7 and 0.9	Hypoechoic and isoechoic	AUS Papillary carcinoma	Papillary-classical and follicular Fibrosis	1.2, 0.3, 0.2	I	TT+RAI

AUS = atypia of undetermined significance; FLUS = follicular lesion of undetermined significance; FNAB = fine needle aspiration biopsy; Op = operation time after the diagnosis of subacute thyroiditis in months; RAI = radioactive iodine; TT = total thyroidectomy; USG = ultrasonography

^∗In patients with more than two nodules, the sizes of the dominant ones are given.