Extraventricular neurocytoma (EVN) is a rare type of brain tumor that typically occurs in the fourth ventricle of the brain. It is a slow-growing tumor that is usually benign, but can become malignant in some cases. Symptoms of EVN can include headaches, nausea, vomiting, and seizures. Treatment typically involves surgical removal of the tumor, followed by radiation and/or chemotherapy.

The most common symptom of extraventricular neurocytoma is seizures. Other symptoms may include headaches, nausea, vomiting, vision changes, and changes in behavior. In some cases, the tumor may cause hydrocephalus, which can lead to increased intracranial pressure, headaches, and vomiting.

Extraventricular neurocytoma (EVN) is a rare, benign brain tumor that typically occurs in children and young adults. The exact cause of EVN is unknown, but it is believed to be related to genetic mutations. Some research suggests that certain genetic mutations may increase the risk of developing EVN, but more research is needed to confirm this. Other possible causes of EVN include exposure to radiation, certain viruses, and environmental factors.

The primary treatment for extraventricular neurocytoma is surgical removal of the tumor. Depending on the size and location of the tumor, this may be done through a craniotomy or endoscopic surgery. In some cases, radiation therapy may be used to reduce the size of the tumor before surgery. In cases where the tumor cannot be completely removed, chemotherapy may be used to reduce the size of the tumor and slow its growth.

1. Age: Extraventricular neurocytomas are most commonly seen in children and young adults.

2. Gender: Extraventricular neurocytomas are more common in males than females.

3. Genetics: Extraventricular neurocytomas are associated with certain genetic mutations, such as those in the NF1 gene.

4. Location: Extraventricular neurocytomas are most commonly found in the brainstem, cerebellum, and fourth ventricle.

Extraventricular neurocytoma is a rare type of brain tumor that is usually treated with surgery. Depending on the size and location of the tumor, radiation therapy and chemotherapy may also be used. There is no known cure for this type of tumor, but treatments can help to reduce symptoms and slow the growth of the tumor.