This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Breast Cancer - Types and Staging, Subject name: Surgery
Most common type of breast carcinoma: 
Select and explain. 
A. Lobular, B. Ductal, C. Medullary, D. Colloid
B: Ductal
Answer: B: Ductal 
Explanation: Ans: b (Ductal) Ref: Bailey, 24th ed, p. 836# Ductal carcinoma is the most common variant.# Subtypes of lobular carcinoma are classical type and pleomorphic type, of which classical type carries a better prognosis.Classification of breast carcinoma with percentage incidence is given in 2007 surgery paper. Please go through it.