Abstract
Epidermoid cysts are rare congenital tumors of the central nervous system (CNS), histologically benign and slow- growing lesions. Their frequency among primitive intracranial tumors is about 1% and they account for 40% of all intracranial epidermoid cysts of the cerebellopontine angle (CPA); the most common symptom which brings about difficulties in oral rehabilitation of these patients is facial weakness which diversely affects impression processes and use of prosthesis. We report the oral rehabilitation of a patient with a cerebellopontine angle epidermoid cyst using neutral zone approach. Keywords: Soft tissue thickness; Facial reconstruction; Cone Beam Computed Tomography
Highlights
Epidermoid cysts are congenital, rare, slowgrowing, benign lesions of central nervous system (CNS) that arise from ectopic inclusion of ectodermal cells during closure of the neural tube between the third and the fifth weeks of embryonic life [1,2,3]
They have a central core of keratin proteins, desquamating cells and cholesterol, lined with a stratified squamous epithelium [4]. They account for 1% of all intracranial tumors [1, 2, 4]; about 40% of them are located in the cerebellopontine angle (CPA), representing the third most frequent lesion after acoustic neuromas and meningiomas [1, 3]
Common presentations include a long history of tinnitus and hearing loss; vestibular symptoms are seldom seen, and occasionally, symptoms of trigeminal neuralgia, Corresponding author: Seyyed Mahdi Vahid Pakdel
Summary
Epidermoid cysts are congenital, rare, slowgrowing, benign lesions of CNS that arise from ectopic inclusion of ectodermal cells during closure of the neural tube between the third and the fifth weeks of embryonic life [1,2,3]. These tumors produce an insidious and protracted symptoms and signs with slow growth of the mass involving cranial nerves and cerebellar and brainstem structures. After thorough examination of signs and symptoms, the cerebellopontine angle epidermoid cyst was reported.
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