[Mandibular keratocyst induced trigeminal neuralgia: report of one case].

Trigeminal neuralgia is very common in clinic, but the etiology is still unclear. This articles reported a case of trigeminal neuralgia induced by jaw keratocyst. The clinical manifestation, radiographic characteristic, pathologic diagnosis and treatment were discussed. It is concluded that jaw bone cavities may be one of the major etiologic factors of secondary trigeminal neuralgia. Surgical curettage of the lesion is the main treatment for this disease.