Because the maxillary sinus is surrounded by bones, even if cancer occurs, it is not easy to see it on the surface.
2. The lesion is not long.
The tumor grew gradually and the bones were destroyed. According to the direction of its expansion, it can show unique symptoms.
When the tumor progresses inward, that is, to the nasal cavity, it often causes nasal congestion, runny nose with bloody pus and tears caused by lacrimal duct obstruction.
3. Middle and late stage
When the tumor develops forward and laterally, cheek edema may occur. If you progress downward, you will have toothache and gum edema.
In addition, when the tumor progresses upwards, the eyeball may protrude slightly because it is pushed, and the white eyeball under the eyeball becomes particularly conspicuous. When you progress backward, your nerves are compressed, and you will often have toothache and headache, and you can't even open your mouth.
At present, there is no clear investigation on the etiology of sinus tumors, which is generally considered to be related to long-term chronic inflammatory stimulation. Most patients with sinus cancer have a history of chronic rhinitis and sinusitis.
For patients with ultra-mild rhinitis, daily nasal washing exercise is really effective. After all, the early virus has not yet entered the sinus. As long as the bacteria outside the nasal cavity are removed and the self-resistance is enhanced, it is natural. However, if the virus in the depths of the sinuses cannot be cleaned up, the virus hidden in the depths will become the fuse of rhinitis.
Patients with chronic rhinitis are more likely to suffer from nasopharyngeal carcinoma. About 90% of nasopharyngeal tumors are caused by chronic rhinitis. In addition, there are many complications caused by rhinitis, including nasal polyps, otitis media, sinusitis, allergic pharyngitis, sleep disorders, bronchial asthma and so on.
Extended data
Malignant tumor of paranasal sinuses is called nasal sinus cancer. Among the cancers of paranasal sinuses, the cavity below the orbit (the deep part of the eye) is the most common, that is, the cancer that occurs in the maxillary sinus (maxillary sinus cancer). This kind of cancer mostly occurs in people aged 50-60, and the ratio of male to female is 2: 1, which shows that the incidence rate of male is higher.
Sinus cancer is one of malignant tumor diseases, which is more common in middle-aged and elderly people, especially men. Sinus cancer often occurs in the cavity below the patient's orbit. The disease is not obvious in the early stage. As the tumor continues to grow, patients will have severe nasal congestion and their cheeks will look swollen.
If there are tumor symptoms such as nosebleeds, doctors should first check the nasal cavity and nasopharynx, and then decide whether to do further endoscopic, CT or MRI examination according to the situation. If there is a tumor, then do a pathological examination (biopsy).
Baidu encyclopedia-sinus cancer