Mortelé Koenraad J, Mortelé Bart, Silverman Stuart G
Division of Abdominal Imaging and Intervention, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St., Boston, MA 02115, USA.
AJR Am J Roentgenol. 2004 Dec;183(6):1653-7. doi: 10.2214/ajr.183.6.01831653.
The purpose of this study was to describe the prevalence and CT features of the accessory spleen.
Accessory spleens are present in 16% of patients undergoing contrast-enhanced abdominal CT. Typically, accessory spleens appear on CT scans as well-marginated, round masses that are smaller than 2 cm and enhance homogeneously on contrast-enhanced images. When accessory spleens are smaller than 1 cm, their attenuation may be lower than that of the spleen because of partial volume effects. Their most frequent location (22%) is posteromedial to the spleen; anterolateral to the upper pole of the left kidney; and lateral, posterior, and superior to the tail of the pancreas. Familiarity with these characteristic features may differentiate them from other pathologic findings in the upper abdomen.
本研究的目的是描述副脾的患病率及CT特征。
在接受腹部增强CT检查的患者中，16%存在副脾。通常，副脾在CT扫描上表现为边界清晰的圆形肿块，直径小于2 cm，在增强图像上均匀强化。当副脾小于1 cm时，由于部分容积效应，其密度可能低于脾脏。其最常见的位置（22%）是脾脏的后内侧；左肾上极的前外侧；以及胰腺尾部的外侧、后方和上方。熟悉这些特征有助于将它们与上腹部的其他病理表现区分开来。
