How effective is stereotactic radiosurgery for brain tumour?

Focused radiation is shaped to the tumour, aiming to damage tumour cells while sparing nearby brain tissue. The treatment may slow or stop growth rather than make the tumour disappear immediately. Follow-up MRI is used to assess the response, and scan changes can sometimes reflect treatment effects such as swelling rather than continuing growth.

Different brain tumours behave differently. The team considers the pathology, whether the tumour has been treated before, its distance from sensitive structures, and whether surgery or another form of radiation would offer a better fit.

Ask the neuro-oncology team to explain the tumour type and the goal of treatment in your case. Bring your scan history and medication list, and mention seizures, headaches, changes in strength, speech, vision or memory. Confirm how the head will be stabilised, what the treatment day involves, and when imaging will be repeated.

Ask how swelling would be managed and whether you need a plan for steroid medicines or seizure treatment. Do not change prescribed medicines without the clinician who manages them.

Get urgent medical help for a seizure, collapse, sudden confusion, new weakness, trouble speaking, or a sudden severe headache. Call the treatment team promptly if headaches, vomiting, drowsiness, vision problems or balance difficulties are worsening.

What tumour features support radiosurgery? Is the goal growth control or symptom relief? Which nearby structures need protection? How will you interpret changes on MRI? What other treatment would be considered if the tumour responds poorly?