This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Thyroid carcinoma with pulsatile vascular skeletal metastasis is - 
Select and explain. 
A. Papillary, B. Follicular, C. Medullary, D. Anaplastic
B: Follicular
Answer: B: Follicular 
Explanation: Pulsatile secondaries are seen in:

Follicular carcinoma Thyroid
Renal cell carcinoma