Transclival endoscopic approach for prepontine cistern neurocysticercosis causing trigeminal neuralgia: illustrative case.

Background: Neurocysticercosis (NCC) is a public health problem in most of the world. Approximately 50 million people worldwide experience this disease, and it remains one of the most important causes of neurological morbidity. Extraparenchymal NCC (basal cisterns) is associated with high rates of morbidity and mortality. Currently, minimally invasive approaches, including the endoscopic endonasal approach, are used with good functional results.

Observations: A 25-year-old patient presented with headache and pain in the left hemiface. Magnetic resonance imaging (MRI) showed cystic lesions in the prepontine basal cisterns compressing and displacing the left trigeminal nerve. The cysticercal lesions were excised using a transclival endoscopic approach. There were no complications during surgery, and pathology confirmed the diagnosis of NCC. The pain subsided after surgery. No residual cysts were observed on control MRI.

Lessons: Minimally invasive approaches can be used to treat tumor and infectious problems of the skull base, as in this case, with good functional results. https://thejns.org/doi/10.3171/CASE24223.