Arachnoid Cyst of Internal Auditory Canal: how the Temporal Bone Findings Explain Ear Symptoms and Suggest the Best Treatment to do
Journal Title: Otolaryngology – Open Journal - Year 2016, Vol 2, Issue 5
Abstract
Objective: Aim of this short review is to identify relevant findings in clinical and surgical treatment studying arachnoid cyst of internal auditory canal. Study design: Retrospective study of relevant papers in literature. Methods: PubMed and Google Scholar searches using the following keywords: arachnoid cyst, internal auditory canal, temporal bones study, schwannoma of internal auditory canal, cystic schwannoma, MRI findings, surgery of internal auditory canal. Only the article where three keywords, included always arachnoid cyst, were considered. The study analyzed the etiopathogenesis of arachnoid cyst, hearing and vestibular symptoms and temporal bone findings. Review and conclusion: The author identified and reviewed a total of 46 articles. The results showed high incidence of hearing loss that was the more common symptom than vestibular one. Arachnoid cyst carried out more compression on the vestibular nerves than on the cochlear one. The review allowed us to identify which mechanism of damage arachnoid cyst acting on the nerves. It is necessary to consider the arachnoids cyst in differential diagnosis with tumors and pathologies involving the internal auditory canal.
Authors and Affiliations
Arianna Di Stadio
Sentinel Node Biopsy in Larynx Cancer: 5 Years Follow-up
Background: The management of the clinically and radiologically negative neck in patients with early Head and Neck Squamous Cell Carcinoma (HNSCC) is still controversial. As approximately 20 to 30% of these patients harb...
Serum Calcitonin Levels may be Used in the Differential Diagnosis of Vagal Glomus
Medullary thyroid carcinoma (MTC) is a neuroendocrine (NE) tumor and is very rarely observed. MTC originates from the parafolliculer C cell and can show various histopathological patterns. Head and neck paragangliomas ar...
Defining “Best Practices” for Critical Endpoints in Preclinical Screening of New Chemical Entities for Ototoxicity Liability
Introduction: Ototoxicity has been defined as the tendency of certain therapeutic agents and other chemical substances to cause functional impairments and cellular degeneration of the tissues of the inner ear resulting i...
The Hidden Epidemic of Smell Loss (Hyposmia) in the United States
There is a hidden epidemic of hyposmia in the United States. While most otolaryngologists may see one or two patients with hyposmia yearly there are as many as 21 million people in the United States with hyposmia.1 Most...
NIFTP: A Critical Pathologist View
In the last two years, there has been an interesting discussion on NIFTP (Non-invasive folicular Thyroid neoplasm papillary-like nuclear features), the previous encapsulated folicular variant of papillary thyroid carcino...