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Management of cerebellopontine angle epidermoid tumors

Thesis

Last updated: 06 Feb 2023

Subjects

-

Tags

Neurosurgery

Advisors

Quttb, Mussttafa M. , Abdel-Halim, Helmi , Abou-El-Nassr, Hazem A. , Abdel-Fattah, Alaa

Authors

Abdel-Salam, Eihab Abdel-Halim

Accessioned

2017-07-12 06:40:08

Available

2017-07-12 06:40:08

type

M.D. Thesis

Abstract

Background: Epidermoid tumors are dysembryogenic lesions that represent 0.2-1.8% of intracranial tumors. They typically occur in the cerebellopontine angle (CPA) and represent 4.6-6.3% of all CPA lesions. After acoustic neurinomas and meningiomas, these lesions are the third most common lesions in the CPA (Caldarelli et al., 2004). Objectives: Evaluation of clinical presentation, imaging and management of cerebellopontine angle epidermoid tumors whether denovo or recurrent. Patients and Methods: This is a prospective study of 15 patients having cerebellopontine angle epidermoids managed in the period between December 2009 and August 2011 in the Neurosurgery Department at Cairo University Hospitals. The rationale of this work was to evaluate the clinical presentation, imaging and management of cerebellopontine angle epidermoid tumors whether denovo or recurrent. Patients of all ages and both sex were included in the study. Results: it was evident that the patients who undergone gross total resection of the capsule had fair and poor outcomes and the patients who undergone subtotal resection of the capsule had better outcome. Conclusions: Despite recent improvements in postoperative outcomes, CPA epidermoids remain challenging entities. The aim of the treatment should be complete removal and preservation of the cranial nerves (CNs). Such outcomes can be obtained in a significant proportion of the cases. The CN V and CN VII may recover after decompression. Whether symptoms related to CN VIII dysfunction will improve remains uncertain. Meticulous surgical technique with is crucial to achieve safe and effective total or subtotal removal of these lesions. Recommendations: When complete excision of the cyst capsule cannot be obtained, its remnants should be severed cautiously and coagulated thoroughly to reduce the risk of recurrence as much as possible. Endoscopy may be a useful tool for tumor visualization, particularly for supratentorial or bilateral extension.

Issued

1 Jan 2011

DOI

http://dx.doi.org/10.21473/iknito-space/35087

Details

Type

Thesis

Created At

05 Feb 2023