A 49-year-old female patient presented to our hospital with a 3 years history of right trigeminal neuralgia in the territory of the first division of the trigeminal nerve refractory to the best medical therapy. Neurological examination was normal. Magnetic resonance imaging (MRI) showed multiple CMs, one of which located on the cisternal segment of the right trigeminal nerve []. We performed a right retrosigmoid craniotomy and total removal of the CM. Histopathological study was compatible with a CM. On the follow-up 28 months later the patient is pain and medication free.
A 40-year-old female patient came to our attention with complains of sudden headache and vision loss. Examination revealed bitemporal hemianopia, diminished visual acuity in both eyes and nuchal rigidity. MRI showed multiple CMs, one of which localized in the optic chiasm, revealing recent bleeding \n[]. The patient had undergone four previous craniotomies at another institution for removal of bleeding CMs in different locations without sequelae. The senior author (JAMC) decided to perform emergent surgical exploration through a right pterional craniotomy, removing the clot and the lesion. Histopathological examination was reported as a CM. On the follow-up, the vision improved and the patient is capable of reading and driving, but 11 years after the surgery a right homonymous hemianopsia persists.