Facial nerve schwannoma: Case report and brief review of the literature

• DOI: 10.1016/j.radcr.2023.06.043
• Publication Date: 2023-07-22T11:17:32Z
• Authors: Joshua L. Libell; Aneri B. Balar; David P. Libell; Joe T. Joseph; Jeffery P. Hogg; Dhairya A. Lakhani; Musharaf Khan
• Keywords: Geniculate ganglion; Cranial nerves; Neuroma; Vestibulocochlear nerve

Schwannomas are rare nerve sheath tumors that can occur throughout the body, and symptomatic based on location, size, impingement adjacent structures. These often benign lesions sporadically or from genetic conditions such as neurofibromatosis. may arise peripheral nerves, gastrointestinal spinal roots cranial nerves. Facial schwannomas VII, commonly involving geniculate ganglion, labyrinthine segment, internal auditory canal. While small asymptomatic, larger cause facial paralysis, spasms. Lesions in canal hearing loss, tinnitus, vertigo, otalgia. High-resolution CT imaging MRI useful for distinguishing between other pathologies same region. scans show bony degeneration of nearby structures labyrinth ossicles. shows hypo intensity T1 imaging, hyperintensity T2 imaging. On postcontrast, enhancement be homogenous heterogeneous with cystic if lesion is large. Nodular seen within Vestibular CN VIII more common, appear similar to schwannomas, but distinguished apart due growth ganglion and/or segment. Management asymptomatic mild typically conservative follow up surgery lesions. Here, we present a case schwannoma 57-year-old woman.