This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Pathology
FNAC is not diagnostic of which of the following thyroid lesions 
Select and explain. 
A. Papillary carcinoma, B. Follicular carcinoma, C. Lymphoma, D. Anaplastic carcinoma
B: Follicular carcinoma
Answer: B: Follicular carcinoma 
Explanation: Extensive histological sampling is required for its diagnosis. Follicular carcinoma generally do not spread through lymphatics. Ref: Robbins and cotrans 9e Pg 1098