Treatment strategies for advanced oral cancer cases particularly on surgical indications

—Sharing our experiences policy for secondary cases, recurrent cases, multi-centric cases and multiple primary cases related to oral cancer—

Abstract

Super-advanced oral cancer cases were provided for this study for post-treatment evaluation. Statistics on oral cancer cases (1,487 cases treated from 1988 to 2013) in our department revealed that 103 cases (6.9%) were under the categories of (1) super advanced cases, (2) radical surgery cases of secondary and/or recurrence cancer, or (3) pathologically intractable cancer cases. In this study, adenoid cystic carcinoma, malignant fibrous histiocytoma (MFH), osteosarcoma and myxosarcoma were classified in the above category (3), if those were advanced cases equivalent to the condition of T4a or T4b in squamous cell carcinoma (SCC). Among the cases presented in this presentation, 32.1% of them were primary cases and 35.6% were secondary, multicentric and/or double cancers.