Balthazar E J, Schechter L S
AJR Am J Roentgenol. 1978 Aug;131(2):219-22. doi: 10.2214/ajr.131.2.219.
A retrospective assessment of the presence of air in the biliary tract is presented, based on plain film findings in 16 proven cases of gallstone ileus. In addition to five cases that demonstrated air in the biliary radicles, four cases exhibited air exclusively in the gallbladder and duodenal bulb. A clearly identifiable radiographic appearance composed of two adjacent small air-fluid levels in the right upper quadrant is described. This radiographic feature represents the air- and fluid-filled duodenal cap adjacent to the visualized shrunken gallbladder. Recognition of this combination of findings helps in establishing a prompt preoperative diagnosis in cases of gallstone ileus.
基于16例经证实的胆石性肠梗阻患者的平片表现，对胆道内气体的存在情况进行了回顾性评估。除了5例在胆管分支中显示有气体的病例外，4例仅在胆囊和十二指肠球部出现气体。描述了一种在右上腹由两个相邻的小气液平面组成的清晰可辨的影像学表现。这种影像学特征代表了与可视化的萎缩胆囊相邻的充满气体和液体的十二指肠球部。认识到这些表现的组合有助于在胆石性肠梗阻病例中迅速做出术前诊断。
