Nasal cancer simply refers to malignant tumors in the nose, including malignant tumors in the external nose, nasal cavity and sinuses.
External nasal cancer: most malignant tumors occurring in the external nose are primary tumors and mostly belong to skin cancer, which are less malignant, easy to be detected and treated early, and patients are mostly middle-aged and elderly people above 40 years old. According to the histopathological classification, external nasal cancer can be divided into basal cell carcinoma, squamous cell carcinoma and malignant melanoma. Basal cell carcinoma mostly occurs in the nose and nasal tip, mostly caused by long-term exposure to ultraviolet light; squamous cell carcinoma is less common, with more obvious pain and faster development; malignant melanoma: rare, composed of melanin-producing cells, related to ultraviolet light exposure, genetics, trauma and endocrine factors, etc.
2.Nasal cavity and sinus cancer: it is more common, mostly caused by local long-term chronic inflammatory stimulation, frequent exposure to carcinogenic substances (arsenic, chromium and its compounds, etc.), malignant transformation of benign tumors, and low immune function. Patients often show nasal congestion, nasal bleeding or bleeding discharge, pain and numbness when nerves are involved, lacrimation and diplopia when nasolacrimal duct and eyes are pressed, difficulty in opening mouth when biting muscles are involved, and general exhaustion, anemia and weight loss when symptoms are severe.
As mentioned above, nasal cancer is a malignant tumor occurring in the nose. Lesions occurring in the external nose are easier to detect, while those occurring in the nasal cavity or sinuses, especially in the sinuses, are not easy to detect in the early stage.