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What is T3 Stage in oral cancer is - and explain in detail?
Ans. is 'b' i.e., Tumour > 4cmin greatest dimension Primary tumor staging of oral cavity carcinomaT0No evidence of primary tumorT1Tumor is <2 cm in greatest dimensionT2Tumor is > 2 cm and < 4 cm in greatest dimensionT3Tumor > 4 cm in greatest dimensionT4a (lip)Primary tumor invading cortical bone, inferior alveolar nerve, floor of mouth, or skin of face (e.g., nose or chin)T4a (oral cavity)Tumor invades adjacent structures (e.g., cortical bone, into deep tongue musculature, maxillary sinus) or skin of faceT4b (lip & oral)Tumor invades masticator space, pterygoid plates, or skull base and/or encases the internal carotid artery