Cisternal trochlear nerve schwannoma: improvement of diplopia after subtotal tumour excision.

Objective And Importance: Trochlear nerve schwannomas without neurofibromatosis are very rare. No more than 33 cases have been pathologically verified. None of the reported cases showed postoperative improvement of trochlear palsy.

Microvascular decompression of the anterior inferior cerebellar artery for intermediate nerve neuralgia.

The authors present the case of a 63-year-old woman with a 5-year history of intractable paroxysmal 'atypical' otofacial pain. The patient's pain attacks were not typical for either trigeminal or vagoglossopharyngeal neuralgia. Surgical exploration via a suboccipital retromastoid craniotomy showed vascular compression of the nervus intermedius by the anterior inferior cerebellar artery and the patient's pain was successfully managed with microvascular decompression.