【摘要】 目的 探討CT對(duì)嬰幼兒腹部巨大囊性病變的診斷價(jià)值及其鑒別診斷?！》椒ā∷鸭?003年-2009年間經(jīng)手術(shù)病理證實(shí)的2歲以內(nèi)患兒腹部巨大囊性病變62例，分析其病變部位、大小、形態(tài)、分隔、密度和強(qiáng)化、囊壁及與周圍臟器關(guān)系等要素。 結(jié)果 62例中，先天性膽總管囊腫4例，重度腎積水36例，巨輸尿管2例，囊性腎母細(xì)胞瘤4例，大網(wǎng)膜囊腫4例，腸系膜囊腫3例，卵巢囊腫6例，囊性畸胎瘤3例。 各種囊性病變有其一定的發(fā)病部位和特征性的CT表現(xiàn)?！〗Y(jié)論 CT是嬰幼兒腹部囊性病變定位、定性診斷的重要影像學(xué)方法。【Abstract】 Objective To explore the value of CT diagnosis and differential diagnosis of the giant cystic lesions in abdomen of the infants. Methods A total of 62 infants younger than 2 years old with the giant cystic lesions in abdomen confirmed by surgery and histopathology from 2003 to 2009 were collected. The location of the lesion, range, configuration, thickness of cystic wall and septa, density, contrast enhancement, and adjacent organs were observed and analyzed. Results In 62 infants, there were congenital cyst of common bile duct in 4, giant hydronephrosis in 36, primary megaureter in 2, cystic Wilms tumor in 4, greater omentum cyst in 4, mesenteric cyst in 3, ovarian cystic in 6, and cystic teratoma in 3. Each disease had its own lesions location and features of CT images. Conclusion CT is very effective on the localized and qualitative diagnosis of the giant cystic lesions in abdomen of infants.