Benign parapharyngeal space tumors
Journal Title: Otolaryngologia Polska - Year 2011, Vol 65, Issue 5
Abstract
SUMMARY Introduction: Parapharyngeal space tumors are rare and represent from 0.5% to 1% of all head and neck tumors. Benign tumors occur in about 80% of all cases and the remaining 20% are malignant tumors. Most of the tumors derive from salivary glands or neural tissue (about 75%), the next 25% have other histopatological origin. Because of poor, late signs and symptoms, and difficult surgical approaches, the tumors of this region are a diagnostical and surgical challange for every doctor. The aim of study: Epidemiological and clinical analysis of patients with benign tumors of the parapharyngeal space. Material and methods: Includes a retrospective analysis of 16 patients hospitalized and treated at the ENT Clinic of the Warsaw Medical University between 2001 and 2010 with confirmed benign tumors of the parapharyngeal space. The data from medical records contain informations about signs and symptoms, diagnostic techniques, surgical approaches, complications and histopatological results. Results: The most frequently reported symptoms included: discomfort and a sensation of a foreign body in the throat. Some patients complained about having difficulty swallowing, hearing problems, and hoarseness. In most cases, the tumor remained symptomless and was discovered only during medical examination. The clinical symptoms usually included a tumor in the throat and/or the neck. To precisely determine the location and nature of the tumor, and its relationship to adjacent structures, computed tomography and magnetic resonance imaging were performed (and angiography in a few cases). Ali patients received surgical treatment. The type of surgical approach depended on the location of the tumor, its size and relationship to large vessels and nerves. Usually, it was transcervical and transparotid approach. In one case, combined transoral-transcervical approach was used with lateral mandibulectomy. In the histopathological examination, tumors had mainly originated from a part of the salivary gland and nerve tissue. Conclusions 1. Tumors of the salivary glands are the most frequent tumors of the para-pharyngeal space. 2. Computed tomography and magnetic resonance imaging are fundamental to proper diagnosis and the choice of surgical approach. 3. External approach to the parapharyngeal space allows good view of this area and complete removal of the tumor. 4. Success of the surgical treatment depends on the experience of surgeons and good knowledge of the anatomy of this region
Authors and Affiliations
Ewa Osuch-Wójcikiewicz, Antoni Bruzgielewicz, Paweł Szwedowicz, Piotr Chęciński, Ireneusz Bąk, Kazimierz Niemczyk
Keywords
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