Glioependymal cysts are a rare, congenital, and benign condition. The authors report a case of a 2-year-old female patient who presented with a large exophytic glioependymal cyst located in the left cerebral peduncle, which began with a history of deteriorating function of the left third cranial nerve (CN III). A left 3-piece fronto-orbitozygomatic approach and a microsurgical complete excision of the cyst were performed without complications by accessing the midbrain through the perioculomotor entry zone. The patient’s CN III function completely recovered after 3 months. Because there are currently no widely approved and used classification systems for these cysts, their reporting, naming, and classification are quite confusing in the literature. Thus, their origin, classification, and most common locations warrant further investigation. In addition to reporting this case, the authors present their review of the literature.
Correspondence Marcos Devanir Silva da Costa: Universidade Federal de São Paulo, São Paulo, Brazil. email@example.com.INCLUDE WHEN CITING Published online October 25, 2019; DOI: 10.3171/2019.8.PEDS19317.Disclosures The authors report no conflict of interest concerning the materials or methods used in this study or the findings specified in this paper.
ShuangshotiSPitakdamrongwongNPoneprasertBBhavilaiDKasantikulV: Symptomatic neuroepithelial cysts in the posterior cranial fossa. Immunohistochemical and electron-microscopic studies. Surg Neurol30:298–3041988
ShuangshotiS, PitakdamrongwongN, PoneprasertB, BhavilaiD, KasantikulV: Symptomatic neuroepithelial cysts in the posterior cranial fossa. Immunohistochemical and electron-microscopic studies. 30:298–304, 1988)| false