The "en bloc" shift: ipsilateral and contralateral abducens nerve palsy following microvascular decompression for trigeminal neuralgia caused by vertebrobasilar dolichoectasia. Illustrative cases. - Ito S; Kosugi K; Fukumoto H; Sayanagi T; Ishikawa K; Watanabe N; Akiyama T; Toda M (Journal of neurosurgery. Case lessons, 2026)