Treatment strategies for advanced oral cancer cases particularly on surgical indications

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  • Yamashita Tetsuro
    Dentistry, Oral and Maxillofacial Surgery, Medical Corporation Keiyukai Sapporo Hospital
  • Ueda Michihiro
    Dentistry, Oral and Maxillofacial Surgery, Medical Corporation Keiyukai Sapporo Hospital
  • Rin Shin
    Dentistry, Oral and Maxillofacial Surgery, Medical Corporation Keiyukai Sapporo Hospital
  • Kogo Tomoyuki
    Dentistry, Oral and Maxillofacial Surgery, Medical Corporation Keiyukai Sapporo Hospital
  • Hosokawa Syuichi
    Dentistry, Oral and Maxillofacial Surgery, Medical Corporation Keiyukai Sapporo Hospital
  • Nakajima Yoritoshi
    Dentistry, Oral and Maxillofacial Surgery, Medical Corporation Keiyukai Sapporo Hospital

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Other Title
  • 二次症例・再発症例・多発癌・重複癌の治療方法（原著）
  • ～特に進展例と外科的適応について～
  • —Sharing our experiences policy for secondary cases, recurrent cases, multi-centric cases and multiple primary cases related to oral cancer—

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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.

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