Table 1.

Ultrasonographic features of thyroid nodules in three patients with thyroid metastasis from clear cell renal cell carcinoma.

Case	Localization	Echo	Shape	Boundary	Calcification	Blood flow	Lymphatic metastasis
1	Left lobe	Hypoechoic	Irregular	Clear	Without	Rich	Yes
	Right lobe	Hypoechoic	Regular	Clear	Without	Rich	No
2	Left lobe	Partially cystic	Regular	Clear	Without	Rich	No
3	Left lobe	Partially cystic	Regular	Clear	Without	Rich	No