This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology and breast, Subject name: Surgery
[{'content': "A patient presents with breast ca. Inspection shows peaud' orange appearance. What is the T stage of the tumor \nSelect and explain. \nA. T2, B. T3, C. T4a, D. T4b", 'role': 'user'}, {'content': "Answer: D \nExplanation: According to TNM staging , primary tumour (T) Tx- cannot be assesed T0- Nevidence of primary tumour. T1-<20mm T2-20 to 50mm T3->50mm T4a- tumour of any size extending to chest wall T4b- ulceaion or ipsilateral satellite nodule / edema with peaud'orange appearence T4c- T4a and T4b T4d- inflammatory carcinoma. SRB's Manual of Surgery.Edition -5. Pg no:539.", 'role': 'assistant'}]