Benign neoplasms in the parotid gland in the county of Copenhagen 1986-1995 |
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Authors: | NR Christensen S Charabi WT S?rensen T Dethloff VH Balle M Tos |
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Affiliation: | Amtssygehuset i Gentofte, afdelingen for otolaryngologi. |
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Abstract: | In a ten year period from 1986-95 433 patients were submitted to operation due to benign tumours in the parotid gland in Copenhagen County. In this study we made a retrospective analysis of the surgical outcome. The incidence was calculated to be 6.8 benign tumours in the parotid gland per 100,000 persons per year. The histological distribution showed a frequency of 54% pleomorphic adenomas, 28% adenolymphomas and 18% other tumours. In the observation period there was a 3% recurrence rate in our material, most frequently the pleomorphic adenoma. The risk of permanent damage to the facial nerve was 1% for severe injury and 3% for affection of the ramus marginalis. Frey's syndrome was present in 50% of the patients, moreover the syndrome was observed many years after surgery. The frequency rate reached its highest level about five years postoperatively. |
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