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Target sign: appendicitis

机译:目标标志:阑尾炎

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"Target sign" of appendicitis is seen on axial sono-graphic images characterized by fluid-filled hypo-echoic center surrounded by an echogenic mucosa and submu-cosa and hypo-echoic muscularis as shown in Fig. 1. This sign is a specific variant of "the bowel wall target sign" which is associated with the bowel wall thickening of variable causes [1]. This sign attributes its name to the appearance of a Bull's eye target as seen in Fig. 2. On longitudinal images, nonperforated, inflamed appendix appears an elongated, fluid-filled, noncompressible, aperistaltic, blind ending tubular structure as seen in Fig. 3. The axial outer-to-outer wall diameter is more than 6 mm [2]. The other findings of appendicitis on sonography include an appendicolith, pericaecal, or periappendicular fluid; increased periappendicular echogencity due to fat infiltration; and enlargement of mesenteric lymph nodes [3]. The US features of appendicular perforation include loss of the echogenic submucosal layer and the presence of a loculated periappendicular fluid collection or abscess [2].
机译:在轴向超声图像上观察到阑尾炎的“靶标志”,其特征在于被回声粘膜和子宫子 - COSA和子宫子 - COSA和Hypo-eacoic Muscularis,如图1所示。该标志是特定的变体与可变原因的肠壁增厚有关的“肠壁靶标志”的影响[1]。此标志将其名称属性将其名称属于公牛眼目标的外观,如图2所示。在纵向图像上,不受欢迎的附录出现在图3中所示的细长,流体填充,不可或阻形的,间隔的,盲终管状结构。3 。轴向外壁直径大于6mm [2]。超声检查的另一种发现包括阑尾炎,围类皮膜或围绕植物;由于脂肪浸润引起的围粒型回声率增加;肠系膜淋巴结的扩大[3]。阑尾穿孔的美国特征包括回声粘膜下层的丧失以及所在的PeriaPencencenceLulatular收集或脓肿​​[2]。

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