Trigeminal neuralgia due to vascular compression in multiple sclerosis--post-mortem findings.

A 71-year-old male with multiple sclerosis and trigeminal neuralgia due to vascular compression underwent multiple radio-frequency nerve lesioning bilaterally. He was anaesthetic on the left side and required right microvascular decompression. He died after this procedure. The pathology of the pons and the effects of treatment are described.