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
Whole body Iodine scan is done in all of the following except : 
Select and explain. 
A. Folliculal carcinoma of thyroid, B. Papillary carcinoma of thyroid, C. Medullary carcinoma of thyroid, D. None of the above
C: Medullary carcinoma of thyroid
Answer: C: Medullary carcinoma of thyroid 
Explanation: Whole body Iodine scan & Radioiodine ablation can not be done in mdullary carcinoma of thyroid & Anaplastic carcinoma of thyroid.