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
Lymph node metastasis is least commonly seen with - 
Select and explain. 
A. Papillary Ca Thyroid, B. Medullary Ca Thyroid, C. Follicular Ca Thyroid, D. All of the above
C: Follicular Ca Thyroid
Answer: C: Follicular Ca Thyroid 
Explanation: Follicular Ca metastasizes primarily through the blood and Lymph node metastasis is quite rare.
Lymph nodes are frequently involved in patients with


Papillary
Medullary
Hurthle cell carcinomas and
Anaplastic