All the cases showed solid masses on CT scan with moderate enhancement after contrast administration.
CT均表现为直肠实性肿块，增强扫描肿块呈中度强化。
Purpose:To evaluate the clinical value of spiral CT scan with hypotonia and contrast enhancement in the diagnosis of the obstructive jaundice.
目的：探讨低张增强扫描技术在梗阻性黄疸诊断中的临床应用价值。
CT scanning methods included plain scan and contrast enhancement.
CT检查方法包括平扫及增强。
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