Intraparenchymal Schwannoma of Temporal Lobe: A Case Report and Review of the Literature

Abstract

Intracranial schwannomas (ISs) account for approximately 8% of intracranial tumors, while IS, a rare entity, is responsible for roughly 1% of IS. A 33-year-old man with a 3-month headache and sudden onset seizure was referred to our clinic. Preoperative magnetic resonance imaging revealed a contrast-enhancing mass accompanied by cystic components in the right temporal lobe. Ganglioglioma, metastasis, or glioblastoma multiforme was suspected, and surgery was advised. During surgery, gross total resection of a noninvasive tumor was conducted. Postoperative recovery was uneventful. Based on histopathological examination and confirmatory immunohistochemistry, the intraparenchymal temporal tumor was diagnosed as schwannoma. ISs are extremely scarce brain tumors mainly located on the surface of the brain or adjacent brain ventricles. The definite preoperative diagnosis of schwannoma cannot be readily established due to radiologically indistinguishable features from metastasis and gliomas; however, histopathology and immunohistochemistry are of great assistance. Complete surgical removal is the most preferred treatment alternative with a long-term favorable prognosis without adjuvant and neoadjuvant chemotherapy requirements.

Keywords

brain tumors - case report - intraparenchymal schwannoma - review - temporal lobe

Informed Consent

Written informed consent was obtained from the patient for the publication of this case report and accompanying images.

Authors' Contributions

S.S. and M.A.H. contributed to writing the paper, data collection, interpretation, and leadership responsibility for the research activity planning and execution, including mentorship external to the core team. M.E., F.K., and M.M.V. contributed to data collection and interpretation. R.Z. contributed to the study concept or design and interpretation.

Publikationsverlauf

Artikel online veröffentlicht:
03. April 2023

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