小脳橋角部腫瘍の放射線治療—ガンマナイフの立場から

Radiation Therapy for Cerebellopontine Angle Tumors:In the Standpoint of Gamma Knife Radiosurgery

Point

・ガンマナイフ治療は小脳橋角部腫瘍の標準的治療となっている．

・ガンマナイフを考慮した手術を行うことにより，機能温存を考えた治療が可能である．

　Stereotactic radiation therapy, including stereotactic radiosurgery, is a well-established and effective treatment for cerebellopontine angle tumors such as meningiomas, vestibular schwannomas, trigeminal and jugular foramen schwannomas, and glomus tumors. It offers high rates of tumor control while preserving neurological function, particularly in tumors smaller than 3 cm, which are ideal candidates for stereotactic radiosurgery. Large tumors or those extending beyond the skull base can also be managed effectively using fractionated stereotactic radiation therapy. As such, a multidisciplinary approach that combines surgical resection with stereotactic radiation therapy is a valuable strategy, especially when functional preservation is a key therapeutic goal.