Results: There were differences in lesion shape, density, boundary, change around the lesion and mediastinum hilus of lung between atypical tuberculosis and lung cancer.

结果：不典型肺结核与肺癌在病灶形态、密度、边缘、灶周改变及纵隔肺门等表现均有不同。

youdao

The ALD was the average CT value of the 3 zones of lung (including apical, hilus and diaphragm).

以肺尖、肺门、横膈3个区的平均CT值作为平均肺密度(ALD)。

youdao