A.50% B.10% C.30% D.1% E.80%
A.粘膜增粗迂曲呈蚯蚓狀或串珠狀 B.粘膜皺襞的中斷、破壞,管壁僵硬 C.管腔狹窄段長,管壁略可收縮 D.食管下端鳥嘴樣狹窄,管壁光滑 E.腫物表面粘膜展平或呈分叉狀