Facial Nerve Tumors in Children: Two Clinical Cases and a Review of the Literature.

ABSTRACT

We provide an extensive review of clinical features, diagnosis, and treatment of primitive facial nerve tumors in children, and report 2 recent personal observations. We conducted a comprehensive literature search through PubMed, Medline, and ScienceDirect and collected information on patients' age, symptoms, tumor types and sites, diagnostic procedures, surgical approaches, and outcomes. Overall, we reviewed 26 pediatric cases from 20 papers. About 69.2% of children presented with some degree of facial palsy. Other symptoms included hearing loss, dizziness, and tinnitus. 84.6% of tumors were schwannomas, followed by meningiomas, epithelioid hemangioendothelioma, and germ cell tumors. The geniculate ganglion was the most commonly affected segment of the facial nerve. A total of 92.3% of children received surgery as complete or partial tumor resection. Facial nerve function improved in 26.9% of children. No tumor recurrence was reported. Facial nerve tumors are extremely rare in children but should be considered in the differential diagnosis of facial palsy, even in newborns. Audiometric and radiologic examinations are necessary; radiologic imaging allows to determine tumor localization, and the correct surgical approach surgery is suggested in almost all cases.