When is stereotactic radiosurgery recommended for brain tumour?

A brain tumour may be non-cancerous or cancerous, and its behaviour and position matter more than the label alone. Stereotactic radiosurgery directs a concentrated radiation dose at a defined target. A specialist reviews MRI or other scans, tissue diagnosis when available, tumour size, growth pattern, previous treatment and proximity to the brainstem, optic nerves and other sensitive structures.

It may be discussed for a small, well-defined tumour, a tumour that has returned, or a remaining area after another treatment. Observation, surgery, conventional radiotherapy or medicines may be more appropriate depending on the diagnosis. The plan includes follow-up scans because the treated area can change gradually and swelling may occur.

Ask whether the diagnosis is confirmed and whether the target is clearly separated from sensitive brain structures. Share your scan history, previous operations or radiation, medicines and any seizure history. Discuss the expected aim, possible effects on memory, vision, movement or hormone function, and how swelling would be managed. Follow instructions for immobilisation, medicines and follow-up imaging, and keep a written list of symptoms.

Get emergency help for a seizure, sudden weakness, new speech or vision difficulty, severe confusion, collapse, repeated vomiting or a rapidly worsening headache. Contact the treating team promptly for increasing drowsiness, new walking difficulty or persistent nausea. These symptoms can signal swelling or another neurological problem and need clinical assessment.

What type of brain tumour do I have, and is focused radiation appropriate for it? What structures are close to the treatment target? How do surgery, observation and other radiation options compare for my situation? What follow-up scans are needed, and which symptoms should trigger urgent help?