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
In a patient with carcinoma breast stage T4b, as per TNM classification, is defined by all of the following except 
Select and explain. 
A. Nipple retraction, B. Skin ulcer over the swelling, C. Dermal edema, D. Satellite nodules
A: Nipple retraction
Answer: A: Nipple retraction 
Explanation: Ans. a. Nipple retraction