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
Most common type of Thyroid carcinoma is 
Select and explain. 
A. Papillary, B. Follicular, C. Medullary, D. Anaplastic
A: Papillary
Answer: A: Papillary 
Explanation: Papillary Histology type Incidence Papillary 80%, Follicular 10%, Medullary 5%, Anaplastic 1% * Papillary carcinoma thyroid (Frequently asked facts) a. Commonest carcinoma of thyroid gland (80%) b. Commonest carcinoma in iodine sufficient area. c. More common in patients with previous exposure to radiation (past childhood) d. Commonest age 30-40 year. e. Multifocal (more common) f. Lymph node metastases more common (i.e., lymphatic spread) g. Distant metastasis uncommon commonest site - lung followed by bone, liver, brain. h. Prognosis excellent - 10 years survival (95%)