Bilateral idiopathic temporal bone meningoencephaloceles - An unusual presentation

Meningoencephaloceles (MECs) occur due to herniation of brain tissue through a bony defect in the skull base. They can be spontaneous or acquired. These are secondary to trauma, infection or neoplasia. Adult-onset spontaneous or idiopathic MECs are rare. Temporal bone MECs can present with watery di...

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Bibliographic Details
Published inJournal of postgraduate medicine Vol. 67; no. 4; pp. 228 - 231
Main Authors Muranjan, S, Singhal, D, Shah, S, Shah, A
Format Journal Article
LanguageEnglish
Published India Wolters Kluwer India Pvt. Ltd 01.10.2021
Medknow Publications & Media Pvt. Ltd
Wolters Kluwer - Medknow
Subjects
Adult
Encephalocele - diagnostic imaging
Encephalocele - surgery
Grand Round Case
Humans
Magnetic Resonance Imaging
Meningocele - diagnostic imaging
Meningocele - surgery
Temporal Bone - diagnostic imaging
Temporal Bone - surgery
Tomography
Tomography, X-Ray Computed
cerebrospinal fluid leak
Autophony
meningoencephalocele
temporal bone
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Summary:Meningoencephaloceles (MECs) occur due to herniation of brain tissue through a bony defect in the skull base. They can be spontaneous or acquired. These are secondary to trauma, infection or neoplasia. Adult-onset spontaneous or idiopathic MECs are rare. Temporal bone MECs can present with watery discharge from the ear, conductive hearing loss or symptoms of meningitis like headache, fever, vomiting or seizures. These symptoms mimic chronic suppurative or serous otitis media. Computed tomography scan and magnetic resonance imaging differentiate between them. Awareness of this disease entity is necessary for early detection to avoid complications. We report a case of bilateral idiopathic temporal bone MECs with a rare presentation of autophony as the chief complaint. The differentiating features on computed tomography scan and magnetic resonance imaging and the surgical management are discussed.
ISSN:0022-3859
0972-2823
DOI:10.4103/jpgm.jpgm_566_21