自身免疫性胰腺炎患者少见的影像表现

Uncommon imaging features in patients with autoimmune pancreatitis

自身免疫性胰腺炎(autoimmune pancreatitis,AIP)是一种特殊类型的胰腺炎症,其常见的影像学特征已被影像科医师熟知,成为诊断AIP的影像学依据。然而在临床工作中我们也发现,除了常见的影像表现,AIP还可出现主胰管扩张、胰腺囊性病变、胰腺周围血管受累、胰腺钙化与胰管结石、类固醇治疗后短期内显著胰腺萎缩、合并恶性肿瘤等少见的影像表现。为进一步提高对AIP影像表现的认识,本文介绍这些AIP少见的CT和MRI表现。

Autoimmune pancreatitis(AIP)is a special type of inflammation of the pancreas,its common imaging features have been well known by radiologists and have served as the indispensable evidence for establishing the diagnosis of AIP.Whereas we have also found that in addition to the common imaging features in clinical practice,AIP sometimes presents with uncommon imaging features such as the pancreatic duct dilation,pancreatic cystic lesions,involvement of peripancreatic blood vessels,pancreatic calcification and pancreatic duct stones,marked pancreatic parenchymal atrophy within one year following steroids treatment,concurrent malignant tumors,and so on.In order to deepen comprehensive recognition for the imaging manifestations of AIP,this article introduced the uncommon CT and MRI findings of AIP.