Sinus cancer is a rare type of cancer that affects the sinuses, which are the air-filled cavities located within the bones of the face and skull. The exact cause of sinus cancer is unknown, but potential risk factors include exposure to certain chemicals and dusts, a history of radiation therapy, a weakened immune system, and smoking. Symptoms of sinus cancer may include persistent nasal congestion, sinus pain, headaches, and changes in vision or hearing. Diagnosis typically involves imaging tests and biopsy, and treatment may involve surgery, radiation therapy, and chemotherapy, depending on the stage and characteristics of the cancer.

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