Swischuk L E, Hayden C K
AJR Am J Roentgenol. 1980 Oct;135(4):687-9. doi: 10.2214/ajr.135.4.687.
The dilated transverse colon sign in acute appendicitis has not been described previously. However, it was noted in 10 of 82 patients with acute appendicitis, and in all 10 cases, perforation had occurred. Since this sign was not seen in nonperforated appendicitis, it is believed to be one of the earliest, if not the earliest, radiographic signs of perforation. It is believed to result from a combination of paralytic ileus of the transverse colon and spasm of the ascending colon, and once appreciated, becomes a valuable asset in the plain film assessment of appendicitis.
急性阑尾炎中的扩张横结肠征此前未曾有过描述。然而，在82例急性阑尾炎患者中有10例出现了该征象，且在这10例患者中均发生了穿孔。由于在未穿孔的阑尾炎中未见到此征象，因此它被认为是穿孔最早（即便不是最早）的影像学征象之一。它被认为是横结肠麻痹性肠梗阻和升结肠痉挛共同作用的结果，一旦被发现，便成为阑尾炎平片评估中的一项重要依据。
