Acoustic schwannoma, also known as Vestibular schwannoma, is an uncommon cancerous tumour in the nerve connecting the inner ear with the brain. Acoustic schwannoma can lead to hearing loss and unbearable pain in the ear. It can be treated by surgical removal, radiation and regular monitoring by the neurosurgeon specialist.

This type of radiation therapy uses high-energy beams of positively charged particles called protons that are delivered to the affected area in targeted doses to treat tumors and minimize radiation exposure to the surrounding area.