Fig. 1From: Conversion surgery after lenvatinib treatment for anaplastic thyroid carcinoma: a case reportUltrasonography before and after lenvatinib treatment. a–c Ultrasonography revealed a hypoechoic mass in the left lobe of the thyroid and lymph node metastases in the right paratracheal and left cervical regions. d–f A hypoechoic mass in the left lobe of the thyroid and lymph node metastases in the right paratracheal and left cervical regions shrank after lenvatinib treatmentBack to article page