摘要
目的：探讨儿童结肠息肉的特征性CT表现。方法：通过对2010年7月-2015年11月间病理诊断为结肠幼年性息肉的病例进行回顾性分析。结果：搜集的122例患儿中,发生在升结肠22例,横结肠18例,降结肠13例,乙状结肠28例,直肠41例,〈5mm的32例,5~10mm的53例,〉10mm的37例,结肠息肉可以表现为在充气肠管轮廓内的结节样软组织密度影。息肉CT平扫表现为等密度结节,局部与邻近肠管关系密切,增强后呈辐轮状强化表现,辐轮CT值约77~92HU之间,辐轮中心强化小血管影CT值约98~165HU之间,并延续至肠壁血管,辐轮间稍低密度影未见明显强化,CT值约23~27HU之间。在搜集的122例患儿中有105例患儿的结肠息肉表现为这种特征性的辐轮状强化,占到总例数的86%。结论：儿童结肠息肉具有特征性的辐轮状CT增强表现,可以作为与其他肠道病变进行鉴别的重要依据。
Objective：To investigate the CT features of colonic polyps in children.Methods：a retrospective study was conducted to analyze CT feature of juvenile colonic polyps proven by pathology diagnosed between July 2010 and November2015.Results：122cases with colonic polyps were collected,22 cases in ascending colon,18 cases in transverse colon,13 cases in descending colon,28 cases in sigmoid colon,41 cases in rectum.For colonic polyps size,〈5mm in 32 cases,5~10mm in53 cases,〉10mm in 37 cases.CT scans showed that colonic polyps were soft tissue density nodules within the outline of the inflated intestine.The mian CT findings of polyps were isodense nodules and closely relationship the adjacent bowel,with wheel enhancement.Post-contrast CT showed that the CT values of spoked wheel were 77~92HU,the CT values of the center strengthening small vessel within spoked wheel were 98~165HU,which continued to the vessel in intestinal wall.The slightly hypodense shadow among spoked wheel did not have significantly enhancement,with CT value of 23~27HU.105 cases of total 122 colonic polyps demonstrated CT feature of spoked wheel enhancement,accounting for 86%.Conclusion：CT feature of colonic polyp in children was spoked wheel like with significant enhancement.This characteristic can be used as an important basis for differential diagnosis from other intestinal lesions.
出处
《放射学实践》
北大核心
2016年第10期980-983,共4页
Radiologic Practice
