This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nose and paranasal sinuses, Subject name: ENT
Carcinoma of maxillary sinus stage III {T3 No Mo}, Treatment of choice is 
Select and explain. 
A. Radiotherapy, B. Surgery and Radiotherapy, C. Chemotherapy, D. Chemotherapy and Surgery
B: Surgery and Radiotherapy
Answer: B: Surgery and Radiotherapy 
Explanation: T3N0M0: Tumor invading the skin of the cheek, anterior ethmoid, pterygoid muscles and orbit with no nodal involvement and no distant metastasis. In most cases, a combination of surgery and radiotherapy is required. However, depending on histopathological nature, therapy may differ. (Ref: Textbook of diseases of ENT, PL Dhingra, 7th edition, pg no. 234)