Bray S T, Johnstone W H, Dee P M, Pope T L, Teates C D, Tegtmeyer C J
Clin Nucl Med. 1984 Sep;9(9):513-8. doi: 10.1097/00003072-198409000-00007.
Reported are ten instances of major bronchial obstruction by mucous plugs in eight patients during which the clinical features resembled pulmonary embolism. Perfusion lung studies showed significantly diminished perfusion of the involved portions of the lungs. The chest radiographs generally did not, however, reflect the severity of the airway obstruction and in some instances were completely normal. The ventilation studies indicated the extent and severity of the obstruction and matched with the perfusion scans. Pulmonary arteriograms were performed in three patients and gave direct evidence of focally diminished lung perfusion without embolism. The physiologic mechanisms underlying the condition are discussed.
报告了8例患者出现10次黏液栓导致的主支气管阻塞情况，在此期间临床特征类似肺栓塞。肺灌注显像显示受累肺段灌注显著减少。然而，胸部X线片通常并未反映气道阻塞的严重程度，在某些情况下完全正常。通气显像显示了阻塞的范围和严重程度，与灌注扫描结果相符。对3例患者进行了肺动脉造影，直接证明了肺部存在局部灌注减少但无栓塞。文中讨论了该病症潜在的生理机制。
