Clinical prognostic factors of salivary adenoid cystic carcinoma: A single-center analysis of 61 patients

Publication date: Available online 10 August 2017
Source:Journal of Cranio-Maxillofacial Surgery
Author(s): Robert Cordesmeyer, Henning Schliephake, Philipp Kauffmann, Markus Tröltzsch, Rainer Laskawi, Philipp Ströbel, Felix Bremmer
PurposeAdenoid cystic carcinomas are rare malignant tumors of the salivary glands. They are characterized by a high rate of local recurrence, late distant metastasis and a poor disease-free survival. In this study, we analysed a series of 61 patients who were all treated at the University of Göttingen over a period of 21.0 years.Materials and MethodsIn all 61 patients with salivary adenoid cystic carcinoma, clinical data, demographic data, risk factors, tumor location, tumor stage, status of surgical margin, surgical treatment, postoperative radiotherapy and follow-up interval were assessed.ResultsThe overall survival (OS) and the disease-free survival (DFS) of patients who underwent surgery and those who underwent combined surgery with radiotherapy showed no significant differences. Neither did the T-stage (T1/T2 vs. T3/T4) show significant differences in OS and DFS. Only the status of the surgical margin was significantly associated with a longer OS and a longer DFS.ConclusionThe present results confirm that the radical surgical resection with clear tumor-free margins is the most important predictor for a longer survival. Adjuvant radiotherapy should be discussed from case to case, but should not be seen as an absolute prognostic factor for OS.



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