Mann D L, Thompson K, Kaiser J
Cardiac Ultrasound Laboratory, Charleston Veterans Administration Medical Center, SC 29403.
Chest. 1990 Feb;97(2):404-6. doi: 10.1378/chest.97.2.404.
This report describes a unique series of patients who, during routine cross-sectional echocardiographic examination, were each noted to have a large echo-dense extracardiac mass adherent to the lateral aspect of the left ventricle. While this echo-dense mass was considered initially to represent an extracardiac tumor, this mass was shown subsequently to be an atelectatic segment of the left lower lobe of the lung. The salient echocardiographic findings that were considered to be helpful in terms of differentiating these adherent pulmonary atelectatic lung segments were that the lung segments always occurred in the presence of a moderate to large left pleural effusion; in real-time examination, the atelectatic lung masses generally appeared solid, as opposed to cystic, with a characteristic brightly reflective ground-glass appearance; there was never any evidence of extrinsic compression of the heart by the lung mass.
本报告描述了一系列独特的患者，他们在常规横断面超声心动图检查中，均被发现左心室外侧附着有一个大的回声致密的心外肿块。虽然这个回声致密的肿块最初被认为是心外肿瘤，但随后显示该肿块是左下肺叶的肺不张段。被认为有助于鉴别这些附着的肺不张肺段的显著超声心动图表现为：肺段总是在中至大量左侧胸腔积液的情况下出现；在实时检查中，肺不张的肺肿块通常表现为实性，而非囊性，具有特征性的明亮反光磨玻璃样外观；肺肿块从未有任何心脏外部受压的证据。
