Brain cancer refers to a malignant tumor that occurs in the cranial cavity of the brain. The incidence of brain tumors is not high, but it is increasing year by year. The incidence rate is relatively high among adolescents. Brain cancer has no obvious gender distinction, and generally there are more male patients than female patients. What exactly is brain cancer? How does brain cancer occur, and what are its types? The causes of brain cancer can be summarized as follows: ① Abnormal development of brain embryonic tissue; ②Genetic factors: In recent years, it is believed that glioma has a genetic tendency; ③ Chemical factors: In recent years, it is believed that the carcinogens methylnitrosourea or ethylnitrosourea can cause brain cancer when taken orally or intravenously; ④ Viral cause. Some foreign scholars have used certain viruses to induce tumors in a variety of animals, but this has not been confirmed in humans. Brain cancer is a type of brain tumor. Brain tumors are divided into primary brain tumors and secondary brain tumors. Primary brain tumors are further divided into benign brain tumors and malignant brain tumors. Benign brain tumors grow slowly and are well differentiated, while malignant brain tumors, also known as brain cancer, grow rapidly and are poorly differentiated. Brain tumors will compress brain tissue, damage the central nervous system, and endanger life. |
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