Fig. 2
From: Colorectal cancer metastases in thyroid: case report and literature review
Ultrasound guided fine needle aspiration (FNA) of suspicious thyroid nodule. Ultrasound images showing 3.8 cm, hypoechoic thyroid nodule (TN) with irregular margins. The entire length of the needle inserted into the thyroid nodule during the FNA biopsy can be seen; the tip of the needle is indicated by the white arrow. T: trachea, CCA: common carotid artery, IJV: internal jugular vein