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  • Title: [Differential diagnosis of parapharyngeal mass].
    Author: Andratschke M, Helmberger R, Mees K.
    Journal: Laryngorhinootologie; 2000 Mar; 79(3):174-9. PubMed ID: 10763177.
    Abstract:
    BACKGROUND: Parapharyngeal lesions are rare. Tumors arising in the parapharyngeal space can be silent clinically for a long period of time. Physical findings like dislocation of the pharyngeal walls or cervical swelling are often recognized by chance. MATERIAL AND METHODS: Representing three cases of parapharyngeal tumors the differential diagnosis of parapharyngeal masses and the importance of the magnetic resonance imaging will be shown. CONCLUSIONS: Mostly, parapharyngeal masses are represented by salivary gland tumors (40%-50%). The second most common tumors in the parapharyngeal space are neurogenic tumors (17%-25%). Paragangliomas are the third group of common parapharyngeal lesions (10%-15%). A mixed group of lesions like branchial cleft cysts, lymph nodes and hematogenic tumors represent the remaining part of the parapharyngeal masses (10%-33%). Most of the lesions (80%) are benign. Because of the magnetic response imaging a reliable preoperative diagnosis is possible in more than 80% of the tumors. The surgical management may also be influenced by the location of the tumor shown in the magnetic resonance imaging.
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