Schwannoglioma

Schwannogliomas (schwannogliomas) are neuroectodermal tumors of the central nervous system. They are at higher risk of developing meningiomas in older patients. Most often, benign cases are observed, but without treatment they can lead to the appearance of malignant neoplasms with a significant increase in the patient’s life expectancy. Less than half of patients with schwannoglima are 50 years of age or younger.

**Schwannoglioma** (schwannoma, schwannoepithelioma, neurocytoma, neurilemmoma, gangliogliocoma) is a tumor of glial cells (schwannocytes). In fact, it is a new tumor of the central nervous system, which appeared as neoplasms in the 15th century. Schwanns also produce the protein neurotanxin (like peripheral nerve cells). Most schwannoglaiomas originate from nerve fiber schwannocytes (ganglia). It is one of the most common brain tumors in children and is rare in adults.

Brain schwannoma typically ranges from 0.5 to 4 cm in diameter and is one of the softest tumors to palpate. Primary schwannomas can occur in any part of the nervous system. They are most often found in the brain and spinal cord, as well as in peripheral nerves. Patients with a history of multiple schwannomas may have a family history or family history of cancer.

In 2015, the Russian Association of Neuro-Oncologists published data on the incidence of schwannogliomas in various regions of the country. The highest frequency of occurrence was noted for schwannoglmas - 5.4% of all soft tissue tumors of the head and neck, 41.9% of brain tumors (also the most frequently observed brain tumor among all benign neoplasms).

A massive study carried out by EORTC indicates that children and young people have a significantly better prognosis than adults. Death due to schwannogloma is a rare occurrence that occurs