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【目的】探讨CT在胰腺浆液性寡囊性腺瘤(SOA)与非浸润性黏液性囊性肿瘤(MCN)中的诊断价值。【方法】回顾性分析37例经病理证实为胰腺SOA(18例)或非浸润性MCN(19例)患者的临床及CT影像资料,对两组病例病变发生部位、病变形态、囊腔最大径、囊壁厚度、囊液CT值、壁结节或乳头状突、胰管扩张及钙化进行评价分析。采用t检验、卡方检验、Fisher确切概率法以及Mann-Whitney U检验进行统计分析。【结果】两组病例在病变发生部位、病变形态、囊壁厚度这些方面的差异具有统计学意义(P<0.033)。SOA常发生于胰头颈部(11/18例),病变形态多表现为不规则分叶状(14/18例),囊壁菲薄均匀,平均厚度为(1.1±0.2)mm。而非浸润性MCN多位于胰体尾(14/19例),病变形态多表现为类圆形(14/19例),囊壁厚薄不均,平均厚度为(2.1±1.0)mm。【结论】胰腺SOA与非浸润性MCN在病变发生部位、病变形态及囊壁厚度这些方面各有特点;CT在鉴别诊断胰腺SOA与非浸润性MCN具有一定价值。
【Objective】 To investigate the diagnostic value of CT in pancreatic serous oligo-cystadenoma (SOA) and non-invasive mucinous cystic neoplasm (MCN). 【Methods】 The clinical and CT images of 37 patients with pathologically confirmed pancreatic SOA (n = 18) or non-invasive MCN (n = 19) were retrospectively analyzed. The location of the lesion, the lesion morphology, the largest diameter of the cyst , Wall thickness, cyst fluid CT value, wall nodules or papillae, pancreatic duct dilation and calcification were evaluated. T test, chi-square test, Fisher exact test and Mann-Whitney U test were used for statistical analysis. 【Results】 The difference between the two groups was statistically significant (P <0.033) in lesion location, lesion morphology and wall thickness. SOA often occurs in the head and neck of the pancreas (11/18 cases). The lesions are irregularly lobulated (14/18 cases). The walls are thin and uniform with an average thickness of (1.1 ± 0.2) mm. Non-infiltrating MCN mostly located in the pancreas and tail (14/19 cases). Morphological changes were mostly round (14/19 cases). The thickness of the wall was uneven with an average thickness of (2.1 ± 1.0) mm. 【Conclusion】 Pancreatic SOA and non-infiltrative MCN have their own features in lesion location, lesion morphology and wall thickness. CT has certain value in differential diagnosis of pancreatic SOA and non-invasive MCN.