Wegener W A, Velchik M G
Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia 19104.
Clin Nucl Med. 1990 Oct;15(10):683-7.
A variety of congenital and acquired etiologies can give rise to the radiographic finding of a unilateral hyperlucent lung. An unusual case of congenital lobar emphysema diagnosed in a young adult following the initial discovery of a hyperexpanded, hyperlucent lung is reported. Although subsequent bronchoscopy and radiologic studies detailed extensive anatomic abnormalities, functional imaging also played an important role in arriving at this rare diagnosis. In particular, ventilation-perfusion scintigraphy identified the small contralateral lung as the functional lung and helped narrow the differential diagnosis to etiologies involving obstructive airway disorders.
多种先天性和后天性病因可导致影像学上出现单侧肺透亮度增加的表现。本文报告了一例不寻常的先天性大叶性肺气肿病例，该病例是在一名年轻成人最初发现肺过度膨胀、透亮度增加后确诊的。尽管随后的支气管镜检查和放射学研究详细描述了广泛的解剖学异常，但功能成像在做出这一罕见诊断中也发挥了重要作用。特别是，通气-灌注闪烁扫描确定对侧小肺为功能肺，并有助于将鉴别诊断范围缩小到涉及阻塞性气道疾病的病因。
