What classifications are included in intracranial gliomas?

  Intracranial glioma is a relatively common tumor disease this year, generally referred to as glioma or glioblastoma, which originates from the neuroepithelium and accounts for forty to fifty percent of intracranial brain tumors and has a relatively high incidence, and is the most common intracranial malignant tumor.  1.Astrocytoma: It is the most common type of intracranial glioma, accounting for about 40%.  2.Medulloblastoma: It is highly malignant tumor, which is usually found in children aged 2-10 years old, and at least in children aged a few months old.  3. Oligodendroglioma: It is a low-grade malignant tumor, benign, and many people also call it benign tumor. The growth is slow and calcified plaques are often seen within the tumor.  4.Ventricular meningioma: It is also a kind of intracranial glioma, and the principle is basically the same as astrocytoma.  Most of the intracranial gliomas develop slowly, and the time from the appearance of symptoms to the consultation is usually several weeks to months, and a few can be several years. The history is shorter for the more malignant and posterior cranial fossa tumors and longer for the more benign ones or those located in the quiet zone. If a tumor has hemorrhage or cystic changes, the symptoms may suddenly worsen and even have a course similar to cerebrovascular disease.  Embryonal tumors of the central nervous system (CNS) include malignant germ cell tumors, adult neural tube cell tumors, and primitive neuroectodermal tumors (PNET), which are more common in children and adolescents.