Analiza występowania i leczenia wznów guzów niezłośliwych ślinianki przyusznej ze szczególnym uwzględnieniem gruczolaka wielopostaciowego

recurrence of tumor was diagnosed in 24 cases: 16 patients were found to have tumor with pleomorphic adenoma, 5 - with cystadenolymphoma, 1 - with onkocytoma, 1 - with lipoma and 2 - with monomorphic adenoma. Recurrence most often occurred inter-related with the two most common types of tumors: pleomorhic adenoma in 5% of the cases (12 out of 237) and cystadenolymphoma in 2.9% of the cases (12 out of 414). This inter-relation is, however, of negligible statistical significance (p = 0.175). Yet, the multifactor analysis confirmed, that in case of pleomorhic adenoma, the duration of complaints for more than 3 years (p = 0.001) and any previous extracapsullar dissection procedure (p = 0.016) applied at the removal of the tumor did exert statistically significant impact upon recurrence. Tumor removal via extracapsullar dissection turned out to pose almost a 4 time greater risk of recurrence as compared to the lateral parotidectomy method.