MRI对胰腺导管内乳头状黏液性肿瘤良恶性的鉴别诊断价值

摘要

目的 探讨MRI对胰腺导管内乳头状黏液性肿瘤良恶性的鉴别诊断价值.方法 收取42例胰腺导管内乳头状黏液性肿瘤(IPMN)患者的资料进行回顾性分析,对其病理学诊断结果与MRI检查结果进行分析比较.结果 42例IPMN中,良性25例、恶性17例.恶性IPMN患者年龄明显大于良性患者;有临床症状的恶性IPMN患者明显多于良性患者,差异均有统计学意义(P＜0.05).25例良性IPMN患者中,4例被误诊为恶性;17例恶性IPMN患者中,3例被误诊为良性,MRI总诊断准确率为83.33％ (35/42).良性IPMN的MRI诊断可见长T1、长T2多房囊状肿瘤;恶性IPMN的MRI诊断可见主胰管长T1、长T2信号单房囊状肿瘤,主胰管扩张以及胰管内等信号的壁结节.结论 MRI对胰腺导管内乳头状黏液性肿瘤良恶性的鉴别诊断具有一定的临床价值.%Objective To explore the clinical value of MRI in benign and malignant differential diagnosis of IPMN.Methods 42 patients with IPMN were retrospectively analyzed,and their pathological results and MRI detection results were compared.Results Among 42 patients,there were 25 benign patients and 17 malignant patients.The age of malignant patients were obviously higher than benign patients,and malignant patients with clinical symptoms were much more than benign patients with statistically significance (P ＜ 0.05).4 benign IPMN patients of 25 cases and 3 malignant IPMN patients of 17 cases were misdiagnosed.The total diagnosis accuracy was 83.33％ (35/42).The MRI results of benign IPMN showed long T1 and long T2 signals multilocular cystic lesion.The MRI results of malignant IPMN showed long T1 and long T2 signals singlelocular cystic lesion,the ductdilatation of main pancreatic and equal signal mural nodule.Conclusion MRI has clinical values in benign and malignant differential diagnosis of IPMN.