system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
T-4d in TNM staging of breast cancer is
assistant
The correct answer is  OT4a: Extension to the chest wall, not including pectoralis muscleOT4b: Edema (including peau d'orange) or ulceration of the skin, or satellite skin nodules confined to the same breastOT4c: Both T4a and T4bT4d: Inflammatory carcinoma