【摘要】 目的 分析和总结慢性胰腺炎和胰腺癌的CT表现特点及鉴别要点，以提高其CT诊断的准确率。方法 回顾性分析30例慢性胰腺炎、39例胰腺癌的CT资料，每例均行平扫与增强扫描，层厚、间隔均5mm。结果 慢性胰腺炎与胰腺癌主要CT征象的出现率分别为:(1)增强扫描病灶呈低、低与等混杂密度43.3%(13/30)、97.4%(38/39);(2)扩张胰管贯通病变区81.8%(9/11)、0(0/31);(3)胆总管下段扩张突然狭窄截断20.0%(1/5)、92.6%(25/27);(4)胰周大血管侵袭、包绕、包埋0(0/30)、61.5%(24/39);(5)胰管与胆管均扩张10.0%(3/30)、53.8%(21/39)。两组比较差异有显著性(P<0.05)。结论 胰腺癌的血供特点与生物学行为是其CT诊断及其与慢性胰腺炎鉴别的重要依据。

    关键词 胰腺炎 胰腺肿瘤 断层摄影术 X线计算机

    CT analysis and differentiation of chronic pancreatitis and pancreatic carcinoma

    Xiao Ping，Tan Lilian，Luo Zuxiao

    Department of Radiology，The Second Affiliated Hospital，Nanhua University，Hengyang421001.

    【Abstract】 Objective To improve the diagnosis accuracy of chronic pancreatitis and pancreatic carcinoma，authors analyzed and summarized their CT characteristics and key points of difference.Methods CT findings in30cases with chronic pancreatitis and39cases with pancreatic carcinoma were retrospectively analyzed.Both plain and enhanced CT scanning were performed in all cases.Both the slice thickness and interval were of5mm.Results The ratio of occurrence of main CT signs of chronic pancreatitis and pancreatic carcinoma was followed respectively:(1)Lesions in enhanced imaging present low density or low-equal mixed density43.3%(13/30)、97.4%(38/39);(2)Dilated pancreatic duct passed through the lesion area81.8%(9/11)、0(0/31);(3)The lower part of dilated comˉmon bile ductwere suddenly obstructed20.0%(1/5)、92.6%(25/27);(4)Peripancreatic blood vessels were invadˉed or surrounded0(0/30)、61.5%(24/39);(5)Both pancreatic duct and bile duct were dilated10.0%(3/30)、53.8%(21/39);All of the above contrast in the two teams have statistical significance(P<0.05).Conclusion Characteristics of blood supply and biological behavior of pancreatic carcinoma are of important basis in CT diagnosing and in distinguishing pancreatic carcinoma from chronic pancreatitis. ......