Do doctors ever use radiation therapy to shrink benign tumors?

Yes: Although radiation is most commonly used to treat cancer it is sometimes used to treat benign tumors such as acoustic neuromas, pituitary adenomas, and paragangliomas.

Yes: Benign rumors can grow and radiation can effect any growing tissue by its effect on dna.

Yes: There are benign tumors that can benefit from radiation. A few examples include meningioma of brain, benign pituitary tumor not operable or recurrence, arteriovenous malformation of blood vessels particularly in brain. Radiation can shrink these tumors to prevent further growth or local complications.