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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 histopathological origin. Because of poor, late signs and symptoms, and difficult surgical approaches, the tumors of this region are a diagnostical and surgical challenge 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 histopathological results., Conclusions: 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). All 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., (Copyright © 2011 Polish Otolaryngology Society. Published by Elsevier Urban & Partner (Poland). All rights reserved.)

The adenoma polymorphum is benign salivary glands tumor. The most common location of occurrence is the parotid followed by the minor salivary glands in which the palate, upper lip and buccal mucosa are most commonly affected. It is a demarcated from the surronding, painless, capsulated and slow growing mass. Microscopically these tumors are composed of varying proportions of epithelial and mesenchymal tissue. Treatment of adenoma polymorphum is complete surgical excision with a surronding margin of normal tissue. This procedure avoids local recurrence. In two years (2007-2009) In Otolaryngology Ward In Miedzyleski Szpiatl Specjalistyczny treated four patients with adenoma polymorphum localised out of salivary glands. The authors described two cases of tumor mixtus localised on soft palate and in external ear canal. The first is a 57-year old male presented a painless swelling over the palate of four months duration. Admitted to ENT Unit on april 2009. He denier dysphagia and dyspnoea. On examination there was a firm, circumscribed tumor of the palate in the right side. CT scans show a right soft palate well-defined mass. He underwent transoral surgical excision. Postoperative period was uneventful. Another case is 18-year old girl with progressive worsening of hearing .On examination external ear canal was blocked due to firm and round tumor on his upper wall. The tumor was excised In local anesthesia. During two years observation there was no evidence of local reccurence.

Pleomorphic adenoma is the most frequent benign tumour of the salivary glands. The most common localization is the parotid gland. The authors present a clinical analysis of the group of 216 patients, who was treated in ENT Department and who was diagnosed as pleomorphic adenoma. The frequency of incidence of mixed tumours is 50.70% of all 426 cases of parotid gland's tumours. In 92, 13% cases the tumours was localized in the superficial part, only in 7.87% in deep part of the gland. Sixteen patient was operated on because of the recurrence of mixed tumours. In one case we observed the syndrome of the auriculotemporal nerve. The temporary paresis of facial nerve after operation occurred in 19 patients. We don't noticed the incidence of salivary fistula in our material.