Gale M E, Birnbaum S B, Gale D R, Vincent M E
J Comput Assist Tomogr. 1984 Aug;8(4):694-8. doi: 10.1097/00004728-198408000-00019.
Esophageal wall invasion by primary lung carcinoma is an uncommon occurrence. When CT demonstrates a large primary parenchymal lung lesion that appears to cross the midline in the posterior mediastinum, dilute oral barium should be given during the CT examination to demonstrate the location of the esophagus. An esophagus involved by lung carcinoma may show contralateral displacement or partial obstruction. Furthermore, a malignant fistula between esophagus and trachea or lung may also be discovered.
原发性肺癌侵犯食管壁是一种罕见的情况。当CT显示肺部实质内有一个较大的原发性病变，且似乎在后纵隔越过中线时，应在CT检查期间给予稀释的口服钡剂，以显示食管的位置。受肺癌侵犯的食管可能表现为对侧移位或部分梗阻。此外，还可能发现食管与气管或肺之间的恶性瘘管。
