Does radiotherapy treat pituitary tumour?

A pituitary tumour is close to the optic nerves, brain and the gland that regulates several hormones. Radiotherapy is therefore planned very precisely and is often considered when a tumour remains after surgery, grows again, or cannot be safely removed. It can aim at the remaining tumour while limiting radiation to nearby structures.

The effect is usually assessed over follow-up rather than judged immediately after a session. Because the pituitary controls hormones, treatment can affect hormone production over time. You may need blood tests, hormone replacement or review by an endocrinologist. Vision checks and scans may also be part of follow-up.

Ask your neurosurgery, oncology and endocrinology teams to explain the tumour type, its growth pattern and its distance from the optic nerves. Bring details of headaches, vision changes, menstrual or sexual changes, thirst, urination, fatigue and current hormone medicines.

Discuss whether observation, medication, another operation or radiotherapy fits your situation. Ask how planning protects vision, how follow-up will check hormone function, and what symptoms should trigger a same-day call. Keep a current list of all hormone treatments.

Seek urgent medical assessment for sudden loss of vision, a severe new headache, confusion, collapse or repeated vomiting. Contact your clinical team promptly for worsening vision, marked weakness, unusual thirst with frequent urination, or symptoms that began after a hormone medicine was changed.

What is the aim of radiotherapy for my tumour? How close is it to the optic nerves? Which hormones will be monitored, and could I need replacement? What alternatives and follow-up schedule should I consider?