Areas of diminished lung density are frequently identified both on routine chest radiographs and chest CT examinations. Colloquially referred to as "hyperlucent" foci of lung, a broad range of underlying pathophysiologic mechanisms and differential diagnoses account for these changes. Despite this, the spectrum of etiologies can be categorized into underlying parenchymal, airway and vascular related entities, respectively. The purpose of this review is to provide a practical diagnostic algorithmic approach to pulmonary hyperlucencies incorporating clinical history and characteristic imaging patterns to narrow the differential.

中文翻译：

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肺透光率 - 一种临床放射学算法诊断方法

在常规胸片和胸部 CT 检查中经常发现肺密度降低的区域。通俗地称为肺的“过度透明”病灶，广泛的潜在病理生理机制和鉴别诊断解释了这些变化。尽管如此，病因谱可以分别分为潜在的实质、气道和血管相关实体。本综述的目的是提供一种实用的诊断算法方法，结合临床病史和特征成像模式来缩小差异。