Rao P M
Department of Radiology, Massachusetts General Hospital, Boston, MA 02114, USA.
J Comput Assist Tomogr. 1999 Jan-Feb;23(1):55-9. doi: 10.1097/00004728-199901000-00012.
In most cases, CT of appendicitis shows a distended appendix with periappendiceal inflammation. A distended appendix, however, is not always visualized. In these patients, identifying changes at the anatomic cecal apex can secure a diagnosis of appendicitis. Cecal apical changes with appendicitis include focal cecal apical thickening, the arrowhead sign, and the cecal bar. This pictorial essay describes and illustrates the spectrum of CT appearances of cecal apical changes that can be seen with appendicitis.
在大多数情况下，阑尾炎的CT表现为阑尾增粗并伴有阑尾周围炎症。然而，增粗的阑尾并非总能显影。对于这些患者，识别盲肠尖部的改变有助于确诊阑尾炎。阑尾炎时盲肠尖部的改变包括局限性盲肠尖部增厚、箭头征和盲肠条。这篇影像专题文章描述并展示了阑尾炎时可见的盲肠尖部改变的CT表现谱。
