Overview of brain tumors, intracranial tumors intracranial tumors and various tissues of the primary transfer to other parts of the body secondary to intracranial tumors, in the ancient Chinese medical books found in headache, really headache, head wind, epilepsy, stroke, dizziness, Jueni, thin card and other diseases.
Histological classification of intracranial tumors (WHO) were: neuroepithelial tumor, nerve Ju membrane cell tumor, meninges and related tissues of the tumor, intracranial primary malignant lymphoma, vascular tissue of the tumor, embryonic cell tumor, congenital tumors, anterior pituitary tumor, adjacent tissues of the tumor, metastatic tumor, and unclassified tumors. Including astrocytomas, Major glioma, ependymoma, pineal cell tumors, neural dark tumor, meningioma, germ cell tumor, craniopharyngioma and metastatic tumors.
Brain tumor overview, the disease can be seen at any age, a good age 30-50 years old. The incidence of intracranial tumors in various parts of the body accounted for 1.8% of the tumor, in children as other relatively small tumors, the incidence rate is relatively higher, at around 7%. Autopsy material in the general brain tumors account for about 1 .. 3% -20%, with glioma (at about 30.4%), meningiomas, pituitary tumors, nerve dark tumor, craniopharyngioma, etc. in order reduced. Intracranial tumors in the cerebral hemispheres most opportunities, followed by Sellar, cerebellum (including vermis), cerebellopontine angle, intraventricular, brainstem. Gender differences in incidence of small, slightly more than men, women, approximately 1.2-1. 5:1, but in different sex ratio of different types of tumors.
Brain tumor with features of a certain age, can provide a reference for clinical diagnosis: such as craniopharyngioma, medulloblastoma, cerebellar star cell tumor, anaplastic glioma and other more common in children; pituitary tumors more common in young people; meningioma , acoustic neuroma more common in middle-aged; metastatic tumors more common in the elderly; glioblastoma multiforme tumors, major glial cell tumors, brain tumors and other star more common in adults. Age and tumor location also has a certain relationship, the majority of intracranial tumors located in the supratentorial, mostly for adults; and infratentorial tumors in less than 1 / 3, half of them children. Different tumor has a predilection sites, such as the cerebral hemisphere gliomas good hair cortex, medulloblastoma occur in the cerebellar vermis, ependymomas occur in the cerebral wall, ANGIORETICULOMA occur in the cerebellum hemisphere, nerve tumors occur in Ju cerebellopontine angle, spinal cord tumors occur in the suprasellar region and so on. Clinically, the site of lesion can guess the nature of the tumor.
Overview of brain tumors, intracranial tumors cause is not yet clear, but in individual tumors, the cause of a certain clues, such as ANGIORETICULOMA have a family of multiple phenomena, suggesting that genetic factors. In addition, some people think trauma, radiation radiation, viral infections, drugs, certain chemicals may also induce brain tumors.