Idiopathic Temporal Bone Encephalocele

V. Papanikolaou; A. Bibas; E. Ferekidis; S. Anagnostopoulou; J. Xenellis

doi:10.1055/s-2007-986429

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Skull Base 2007; 17(5): 311-316
DOI: 10.1055/s-2007-986429

CASE REPORT

Idiopathic Temporal Bone Encephalocele

V. Papanikolaou¹ , A. Bibas¹ , E. Ferekidis¹ , S. Anagnostopoulou³ , J. Xenellis²

¹1st Department of Otolaryngology, Hippokration Hospital, University of Athens Medical School, Athens, Greece
²2nd Department of Otolaryngology, Attikon Hospital, University of Athens Medical School, Athens, Greece
³Department of Anatomy, University of Athens Medical School, Athens, Greece

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Publication History

Publication Date:
07 September 2007 (online)

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ABSTRACT

Meningoencephaloceles are herniations of brain tissue through dehiscences of the skull base. These skull defects are either acquired (otologic infection, trauma, surgery, neoplasia) or spontaneous. Spontaneous temporal bone meningoencephaloceles are quite rare conditions, usually congenital in origin presenting during childhood, and only occasionally idiopathic presenting during adulthood. We present a case of temporal bone meningoencephalocele of adult onset. The patient was treated with exploratory mastoidectomy, amputation of the herniated cele and closure of the defect with temporalis fascia and an inferiorly based pedicled muscular flap. No reconstruction of the bony defect was performed, as the layered closure was considered adequate. Twelve months' follow-up revealed no relapse of the condition or postoperative complications.

KEYWORDS

Temporal bone - meningoencephalocele - brain herniation

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A. BibasM.Sc.

2 Nikitara Street, 154 51 Athens

Greece

Email: thanosbibas@hotmail.com