Retrospectiveに経過観察可能であった食道癌の3例

Retrospective Study of Growth and Progression of Esophageal Cancer: Based on Roentgenologic and Endoscopic Findings, Report of Three Cases

要旨　retrospectiveにX線診断上経過観察可能であった2例と，内視鏡診断上経過観察可能であった1例について報告する，いずれも2年以内に表在型から進行癌へと進展しており，食道癌の進展の速さを改めて認識させられると共に初回時検査の重要性を感じた．また逆追跡のX線所見の微細所見を検討すると，われわれの経験した粘膜内癌と似た所見が認められた．逆追跡の内視鏡所見においても上皮内癌の内視鏡所見に類似した凹凸のほとんどない淡い発赤を呈していた．内視鏡検査で食道に軽微な変化のみられたときには必ずルゴール散布法を併用し，生検で癌陰性の場合でも内視鏡所見で強く癌が疑われるときには，厳重な経過観察を行い生検を繰り返すことが重要と考えられた．

　Long-term observations, considered to be necessary for obtaining information on the progressive growth course of esophageal cancer, have been rarely reported. We have made retrospective studies in three cases with advanced esophageal carcinoma. (Case 1) A shallow depression measuring 15 mm in its longer diameter observed in initial x-ray film increased in size to 55 mm during a period of 20 months. (Case 2) A protruded le-sion measuring 18 mm in its longer diameter observed in initial x-ray film increased in size to 63 mm during a 13 month period (Case 3). A reddish erosive lesion (intraepithelial carcinoma suspected) increased to advanced esophageal carcinoma over a period of 18 months.