耳鼻咽喉科・頭頸部外科89巻11号

2017年10月発行

特集① 明日から役立つ頭頸部領域の核医学—最新情報

FDG-PET/CTによる頭頸部がん化学放射線療法の効果判定

著者： 上田百合¹ 田原信¹

所属機関： ¹国立がん研究センター東病院頭頸部内科

ページ範囲：P.880 - P.885

文献概要

POINT

●PETはCRT後の治療効果判定に有用であり，特に高い特異度は救済手術の判断を行う際の一助となる。

●治療効果判定目的のPETはCRT終了後10週以降に行い，残存が疑われる場合には救済手術を考慮すべきである。

●頸部リンパ節は原発巣に比べ偽陰性を生じやすく，PET陰性であったとしても注意深い経過観察が必要であり，必要に応じて頸部エコーなど他の画像検査も併せて施行する。

●CRT後のplanned NDについては，PET陰性であれば不要との意見や，N stage進行例ではplanned NDを行うべきという意見があり，いまだ議論が分かれている。

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