What information should the patient ask the doctor after having maxillary sinus cancer? 1.What kind of maxillary sinus cancer do I have? 2.Where is the exact primary location likely to be? 3.Does my tumor invade the surrounding tissues, such as eyes, meninges, teeth, lymph nodes in the neck? 4.What is the stage of my tumor? What is the probability of five-year survival? 5.What is my comprehensive treatment plan? Which doctors are responsible for each of them? 6.Do I need radiotherapy? Post-operative or pre-operative? 7.Do I need post-operative chemotherapy? 8.What is your experience in treating this tumor? 9.What are the possible side effects? 10.What are the complications of the surgery? Can I get negative margins with my surgery? 11. Does this surgery affect my appearance? Are there any other options to avoid disfigurement? 12.What is the appearance of my eyes and my vision after radiotherapy? 13.Do I have to adjust my life and work habits in the future? How to adjust? 14.What else should I do before treatment? 15.How will I be followed up?