What Caused Neck Pain in This 73-Year-Old Man?

Poll

A 73-year-old man presents with neck pain and a mass of possible thyroid origin. What is your diagnosis?

A 73-year-old man presents with neck pain. Physical examination reveals a mass of possible thyroid origin.

Based on the image shown, what is your diagnosis?

A. Papillary carcinoma of the thyroid
B. Follicular carcinoma of the thyroid
C. Angiosarcoma of the thyroid
D. Follicular adenoma of the thyroid