胰腺黏液性囊性肿瘤与浆液性囊腺瘤MSCT影像学特征及其临床诊断价值分析

Analysis of MSCT Imaging Features of Pancreatic Mucinous Cystic Tumor and Serous Cystadenoma and its Clinical Diagnostic Value

目的旨在分析胰腺MCN与SCN在MSCT影像学特征及其临床诊断价值。方法回顾性分析2017年5月至2019年6月本院收治的46例胰腺囊性肿瘤患者,所有患者均经手术病理检查确诊,其中21例为MCN,25例为SCN。对患者所得图像进行分析,了解SCN、MCN患者病灶基本情况包括:部位、形态、囊腔直径、囊壁厚薄、强化程度、有无实性成分、有无钙化、胰胆管扩张等情况。结果MCN囊腔直径>2cm,囊内少见实性成分,SCN囊腔直径≤2cm囊内多见实性成分(P<0.05);SCN:MSCT图像可见肿瘤为轮廓清楚分叶状,可分为微囊型、少囊型囊腔细小常<2cm,可见有蜂窝状改变,中央可见星状瘢痕、日光放射状钙化,MCN:MSCT图像可见肿瘤由大单囊或者是几个大囊所组成,可见囊壁厚薄不均(常<1cm),并伴有强化出现,囊壁分割菲薄呈线状,可伴有钙化出现;恶性者表现为不规则厚壁有突入腔内壁结节。结论SCN、MCN影像学特征表现多样,可为临床诊断提供参考,MCN囊腔直径>2cm,囊内少见实性成分,SCN囊腔直径≤2cm囊内多见实性成分。

Objective To analyze imaging features of pancreatic MCN and SCN in MSCT and their clinical diagnostic value.Methods The data of 46 patients with pancreatic cystic tumor treated in our hospital from May 2017 to June 2019 were retrospectively analyzed.All patients were confirmed by surgical pathological examination,of which 21 patients were MCN and 25 patients were SCN.The images of the patients were analyzed to understand the basic conditions of the lesions in patients with SCN and MCN,including:location,shape,diameter of the capsule cavity,thickness of the cyst wall,degree of enhancement,presence or absence of solid components,calcification,pancreaticobiliary duct dilatation,etc.Results The diameter of MCN capsule cavity is>2cm,there are few solid components in the capsule,and the diameter of SCN capsule cavity is less than 2cm.There are more solid components in the capsule(P<0.05).SCN:MSCT image shows that the tumor is lobulated,with clear outline,which can be divided into microcapsule type and oligocapsule type.The cavity is small and often smaller than 2cm,with honeycomb changes.Stellate scars and radiant calcifications can be seen in the center.MCN:The MSCT image shows that the tumor is composed of a large single capsule or several large capsules.The thickness of the capsule wall is uneven(usually<1cm)and accompanied by enhancement.The segmentation of the capsule wall is thin and linear,and may be accompanied by calcification.Malignant patients show irregular thick walls have nodules protruding into the inner wall of the cavity).Conclusion The imaging features of SCN and MCN are diverse,which can provide a reference for clinical diagnosis.The diameter of MCN capsule cavity is>2cm,there are few solid components in the capsule,and the diameter of SCN capsule cavity is less than 2cm,and there are more solid components in the capsule.