在硅肺，病灶常包绕呼吸性细支气管，以小叶中心区为主。
As in patients with silicosis, these abnormalities tend to surround respiratory bronchioles and are primarily centrilobular in location.
还可见小叶性透亮区和空气潴留，是HP的特征性表现，为细支气管炎表现。
Patchy lobular lucency and air trapping may also be seen, and is characteristic of hypersensitivity pneumonitis, reflecting the presence of bronchiolitis.
还可见小叶性透亮区和空气潴留，是HP的特征性表现，为细支气管炎表现。
Patchy lobular lucency and air trapping may also be seen, and is characteristic of hypersensitivity pneumonitis, reflecting the presence of bronchiolitis.
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