Balthazar E J, Megibow A J, Gordon R B, Whelan C A, Hulnick D
Department of Radiology, New York University Medical Center, NY.
J Comput Assist Tomogr. 1988 Jul-Aug;12(4):595-601. doi: 10.1097/00004728-198807000-00010.
This report describes the CT features of 29 abnormal appendices visualized during abdominal CT examinations. There were 22 cases of acute appendicitis, five mucoceles, and two mucinous adenocarcinomas of the appendix. The inflammed appendix appeared either as a fluid-filled slightly distended structure or as a collapsed small tubular structure. It was visualized on either cross or longitudinal sections and showed slight circumferential wall thickening. Periappendiceal inflammation was detected in 19 cases and intraluminal appendicoliths in six cases. Mucocele appeared as a larger fluid-filled round, oval, or tubular structure having a thin, sharp wall, low density contents, and no periappendiceal inflammation. Mucinous carcinoma appeared either as a single or as multiloculated, irregular shaped cystic lesion with solid elements. Infiltration of cecum and terminal ileum was seen in one case. In five cases the abnormal appendix was not recognized initially and was identified only after repeat 5 X 5 mm sections were obtained. During CT examination, demonstration of an abnormal appendix establishes the source of the abdominal pathology and helps greatly in the differential diagnosis.
本报告描述了在腹部CT检查中发现的29个异常阑尾的CT特征。其中急性阑尾炎22例，阑尾黏液囊肿5例，阑尾黏液腺癌2例。发炎的阑尾表现为充满液体的轻度扩张结构或塌陷的小管状结构。在横断面或纵断面上均可显示，阑尾壁有轻微的环形增厚。19例检测到阑尾周围炎症，6例检测到阑尾腔内结石。黏液囊肿表现为较大的、充满液体的圆形、椭圆形或管状结构，壁薄而清晰，内容物密度低，无阑尾周围炎症。黏液腺癌表现为单个或多房性、不规则形的囊性病变，并伴有实性成分。1例可见盲肠和回肠末端受侵。5例最初未识别出异常阑尾，仅在获取重复的5×5mm层面图像后才得以确认。在CT检查中，显示异常阑尾可明确腹部病变的来源，对鉴别诊断有很大帮助。
