结节散在并呈斑片状分布，以上肺和背侧为主，对称性的累及双上肺。

The nodules are scattered and patchy in distribution, and predominate posteriorly and in the upper lobes. The nodules show symmetrical involvement (Figure 2, Figure 3) of both upper lobes.

youdao

结节散在并呈斑片状分布，以上肺和背侧为主，对称性的累及双上肺。

The nodules are scattered and patchy in distribution, and predominate posteriorly and in the upper lobes. The nodules show symmetrical involvement (Figure 2, Figure 3) of both upper lobes.

youdao