A. USG findings neck. An enlarged heterogenous mass in the left lobe of the thyroid along with another cystic hypoechoic nodule in the isthmus extending into the right lobe (thin arrow). B. CT Scan findings. an enlarged heterogeneous mass with areas of calcification and 'necrosis' in the left lobe of the thyroid (thick arrow) along with another discrete cystic nodule in the isthmus (thin arrow). C. Gross findings. A solid, fleshy, grey white tumor in the left lobe of the thyroid. D. Isthmic nodule exhibiting multiple cystic areas.