Giant Juvenile Ectopic Schwannoma of the Temporal Bone.

Autor: Moon RDC; Department of Neurosurgery, North Bristol NHS Trust, Bristol, United Kingdom. Electronic address: richard.moon@nbt.nhs.uk., Singleton WGB; Department of Neurosurgery, North Bristol NHS Trust, Bristol, United Kingdom; Department of Paediatric Neurosurgery, Bristol Royal Hospital for Children, University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, United Kingdom., Daniels AR; Department of Neuropathology, North Bristol NHS Trust, Bristol, United Kingdom., Kurian KM; Department of Neuropathology, North Bristol NHS Trust, Bristol, United Kingdom., Baldwin DL; Department of Ear, Nose and Throat Surgery, University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, United Kingdom., Fellows G; Department of Paediatric Neurosurgery, Bristol Royal Hospital for Children, University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, United Kingdom., Clamp PJ; Department of Ear, Nose and Throat Surgery, University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, United Kingdom., Nelson RJ; Department of Neurosurgery, North Bristol NHS Trust, Bristol, United Kingdom.
Jazyk: angličtina
Zdroj: World neurosurgery [World Neurosurg] 2020 Oct; Vol. 142, pp. 364-367. Date of Electronic Publication: 2020 Jul 08.
DOI: 10.1016/j.wneu.2020.06.229
Abstrakt: Background: Ectopic intracranial schwannomas (those that do not arise from a named cranial nerve) are rare. They account for <2% of surgically resected central nervous system schwannomas.
Case Description: We report the case of a 14-year-old boy presenting with a left conductive hearing loss and temporal bone deformity. No facial or cranial nerve deficits were present. Cross-sectional imaging demonstrated a large expansile extra-axial temporal bone mass, extending into and distorting the middle cranial fossa. At surgical resection the tumor was functionally and anatomically distinct from the facial nerve or any other identifiable neural structure within the middle ear or temporal bone. Histology confirmed a World Health Organization grade 1 schwannoma.
Conclusions: This is the first reported case of a giant juvenile ectopic schwannoma within the temporal bone.
(Copyright © 2020 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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