上咽頭低分化型偏平上癌新ＴＮＭ分類の問題点　　旧ＴＮＭ分類との比較

DOI オープンアクセス

書誌事項

タイトル別名
  • Justification of 1997 UICC TNM classification for poorly differentiated squamous cell carcinoma of the nasopharynx.
  • 旧TNM分類との比較

説明

The record of 59 patients with poorly-differentiated squamous cell carcinoma of the nasopharynx who were treated with radiation therapy between 1980 and 1998 were retrospectively analyzed to clarify whether 1997 UICC classification may be reasonable for suggesting the treatment outcome compared with 1987 UICC classification. Since X-CT and/or MRI were indispensable to classification of the tumor extent according to the 1997 classification, the tumors which were treated before clinical induction of these diagnostic imagings cannot be reclassified into a new stage. The number of patients who classified into the new Stage IV decreased because patients with stage IV tumor according to the 1987 classification were divided into 5 new stages; stage II b, III, IVa, IVb and IVc. Nevertheless many patients with curable tumors were classified into new stage IV. Tumor volume in lymph node was a more important prognostic factor than level of cervical lymph node metastasis. It was necessary to make a new TNM classification for nasopharyngeal cancer in due consideration of histological types and/or histological grading, because the first choice of treatment for nasopharyngeal cancer was radiation therapy and tumors which are different in natural history and radiosensitivity can appear at the nasopharynx.

収録刊行物

  • 頭頸部腫瘍

    頭頸部腫瘍 25 (3), 433-437, 1999

    日本頭頸部癌学会

キーワード

詳細情報 詳細情報について

  • CRID
    1390282679705057408
  • NII論文ID
    130004166700
  • DOI
    10.5981/jjhnc1974.25.433
  • ISSN
    18839878
    09114335
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • Crossref
    • CiNii Articles
    • OpenAIRE
  • 抄録ライセンスフラグ
    使用不可

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