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目的分析胰腺囊性病变的MSCT表现及诊断。方法回顾性分析手术病理或随访证实的27例胰腺囊性病变的MSCT表现。结果假囊肿11例,平扫表现为囊状水样低密度影,增强扫描,囊壁轻度强化,内无分隔。囊腺瘤9例,其中浆液性囊腺瘤6例、黏液性囊腺瘤3例,平扫呈囊状水样密度并见壁结节,其内有分隔,增强扫描囊壁、壁结节及分隔不规则强化。囊腺癌4例,肿瘤呈多房分隔囊性病灶,壁厚薄不一,显不均匀强化,其中2例伴肝脏转移。胰腺脓肿1例,平扫为类圆形液性密度,内见小气泡影,囊壁呈环形强化。胰岛细胞瘤囊变1例,囊液密度略高,增强周边强化。胰腺癌伴囊变1例平扫呈程度不同的低密度区,囊变区内无分隔,壁厚不均匀。结论胰腺囊性病变有各自的CT表现特征。螺旋CT及后处理技术能很好显示胰腺囊性肿瘤内部结构及邻近脏器、血管受累改变,是诊断胰腺囊性病变的较好方法。
Objective To analyze the manifestations and diagnosis of pancreatic cystic lesions by MSCT. Methods Retrospective analysis of surgical pathology or follow-up confirmed 27 cases of pancreatic cystic lesions MSCT performance. Results Fake cysts in 11 cases, the performance of cystic water showed low density, enhanced scanning, slightly enhanced cyst wall, without separation. Cystadenoma in 9 cases, including 6 cases of serous cystadenoma, mucinous cystadenoma in 3 cases, cystic water samples were plain density and see the wall nodules, which are separated, enhanced scan wall, wall nodules And separated irregular enhancement. Cystadenocarcinoma in 4 cases, the tumor was segregated cystic lesions in multiple rooms, wall thickness varies, was uneven enhancement, of which 2 cases with liver metastasis. Pancreatic abscess in 1 case, plain scan for circular liquid density, see the small bubble inside, the wall was ring-shaped enhancement. 1 case of islet cell tumor cyst fluid cyst fluid density is slightly higher, enhanced peripheral enhancement. Pancreatic cancer with cystic change in 1 case showed varying degrees of plain low-density area, cystic area without separation, uneven wall thickness. Conclusion Pancreatic cystic lesions have their own CT features. Spiral CT and post-processing techniques can be a good indicator of the internal structure of pancreatic cystic tumors and adjacent organs, vascular involvement changes, is a good method of diagnosis of pancreatic cystic lesions.