You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Glioma of the optic nerve is usually – and explain in detail?
Optic nerve glioma

Optic nerve glioma, also referred to as juvenile pilocytic astrocytoma, is the most frequent tumour of the optic nerve in childhood.
It is a developmental hamartoma.
It is either stationary or only slowly progressive.
Tumour may arise in any portion of the nerve →


Intraorbital,
Intracanalicular
Intracranial