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Trigeminal neuralgia caused by a persistent primitive trigeminal artery: preoperative three-dimensional multifusion imaging and computational fluid dynamics analysis. Illustrative case

Toru Satoh, Takao Yasuhara, Michiari Umakoshi, and Isao Date

Trigeminal neuralgia (TN) is mainly caused by compression of the trigeminal nerve by blood vessels at the site of neurovascular contact (NVC). 1 However, the detailed mechanism of its onset is unknown. The superior cerebellar artery (SCA), anterior inferior cerebellar artery, and basilar artery and veins are responsible for this condition. TN caused by the persistent primitive trigeminal artery (PTA) and its variants is extremely rare, accounting for 0.2%–0.6% of TN cases. 2 , 3 Herein, we describe a case of TN in which the PTA trunk was fused with the SCA

Open access

Utilization of three-dimensional fusion images with high-resolution computed tomography angiography for preoperative evaluation of microvascular decompression: patient series

Takamitsu Iwata, Koichi Hosomi, Naoki Tani, Hui Ming Khoo, Satoru Oshino, and Haruhiko Kishima

Neurovascular compression syndromes, such as trigeminal neuralgia, hemifacial spasm, and glossopharyngeal neuralgia, are abnormal conditions that can substantially affect the quality of life of patients. 1–3 Microvascular decompression (MVD) is an effective surgical treatment for drug-resistant cases. 1–4 The overall success rate of MVD varies from 73% to 90%, and the most common complications include hearing loss, facial weakness or numbness, and cerebrospinal fluid leakage. 3 , 5 However, the success of MVD depends on accurate preoperative imaging and