Results: 16 cases intracavity type show with round or half-round filling defect on X-ray image, 8 cases extra cavity type with light press partly in barium meal examine.
结果：常规食管X线钡餐造影示腔内型16例，表现为圆形或半圆形充盈缺损，腔外型8例，表现为局部轻度受压。
X-ray radiation transport in cylinder cavity targets is studied.
研究了柱腔靶中X光辐射能量传输。
Results The X-ray features included abroad areas of focus, and mainly infiltration with fibre and cavity lesions.
结果本组X线表现特征主要为病变范围广，以浸润型为主，同时伴有空洞和并发症较多。
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