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
Which one of the following does not classify as locally advanced breast cancer? 
Select and explain. 
A. Tumour more than 4cm, B. Inflammatory breast cancer, C. Chest wall involvement, D. Skin involvement
A: Tumour more than 4cm
Answer: A: Tumour more than 4cm 
Explanation: Answer- A. Tumour more than 4cmLocally advanced breast cancer-T4 N2 N3 M0