13例肠系膜淋巴管瘤CT分析

目的：探讨肠系膜淋巴管瘤(ML)的CT表现及其分型。方法：经病理证实的ML13例，男7例，女6例，平均34岁。8例做常规CT扫描，5例做螺旋CT扫描，层厚10mm。结果：10例起源于小肠系膜，3例起源于结肠系膜。单房型囊肿3例，多发或多房囊肿10例，囊壁菲薄，光滑，囊内密度均匀，增强扫描如有囊壁及分隔有明显强化是其特点。成年型：囊肿形状较规则，分叶明显，类似扩张的结肠；幼儿型：囊肿形状欠规则，分叶及分隔不规则。结论：肠系膜淋巴管瘤好发于小肠系膜，无年龄特异性，CT表现为单房或多房性(多发性)囊肿，多呈壁薄分叶状多房性囊肿，增强扫描多数病变囊壁及分隔有明显强化。

CT scanning features in 13 patients with mesenteric lymphangioma

Objective:To summarize the CT scanning characteristics of mesenteric lymphangioma (ML). Methods: Thirteen patients with pathologically proven ML were enrolled. There were 7 men and 6 women, and the mean age was 34 years. Of them, 8 cases were scanned by conventional CT and 5 by spiral CT with 10 mm slice. Results: Ten cases were originated from mesostenium, and 3 from mesocolon. There were 3 solitary cysts and 10 multiple or multiloculated cysts. The cystic wall was thin and smooth, the cystic density was homogeneous, and there existed intensified wall and compartment. Adult type of ML was similar to a distended colon, namely having regular cyst and sublobes; whereas infant type had irregular cyst and sublobes. Conclusion: ML is frequently originated from mesostenium, and there is not age-specific. CT scanning characteristics of ML include single, multiple or multiloculated cysts, and thin and enhancing cystic wall and compartment.