【摘要】：目的 探討自身免疫性胰腺炎(AIP)胰管病變的MRCP特征。方法 回顧性分析15例AIP患者的臨床及MRCP影像資料,對其胰管病變進行定性及定量分析。結(jié)果 MRCP上15例AIP患者的胰管均見狹窄(15/15,100%),表現(xiàn)為局部胰管不可見。9例(9/15,60.00%)同時累及腹胰管和背胰管,僅腹胰管或背胰管受累各3例(3/15,20.00%)。11例(11/15,73.33%)胰管呈單發(fā)節(jié)段性狹窄,狹窄長度2.07~4.69cm(中位數(shù)3.24cm),上游胰管管徑0.14~0.31cm(中位數(shù)0.19cm);4例(4/15,26.67%)胰管呈多發(fā)節(jié)段性狹窄,狹窄長度0.19~3.45cm(中位數(shù)0.82cm),狹窄段間及上游胰管管徑0.14~0.70cm(中位數(shù)0.21cm)。軸位T1WI、T2WI上,13例(13/15,86.67%)胰腺彌漫性腫大,病變胰腺T1WI呈等、低信號,T2WI稍高信號為主混雜信號;2例(2/15,13.33%)胰腺局限性腫大/腫塊,其胰管狹窄部位與胰腺實質(zhì)病變范圍一致。1例(1/15,6.67%)胰尾周圍見假性囊腫。結(jié)論 AIP胰管病變的MRCP表現(xiàn)可分為單節(jié)段狹窄型和多節(jié)段狹窄型,大多數(shù)的非狹窄段胰管不擴張,但胰管擴張不能排除AIP。
[Abstract]:Objective to investigate the MRCP features of (AIP) pancreatic duct lesions in autoimmune pancreatitis. Methods the clinical and MRCP imaging data of 15 patients with AIP were analyzed retrospectively and the pancreatic duct lesions were analyzed qualitatively and quantitatively. Results the pancreatic duct stenosis was found in 15 cases of AIP on MRCP (15 / 15100%), 9 cases (9 / 1560.00%) were not seen in the pancreatic duct, only 3 cases (315 / 20. 00%) and 11 cases (11 / 15 73.33%) had unilateral segmental stenosis of the pancreatic duct. There were 4 cases (4 / 1526.67%) with multiple segmental stenosis in 0.14~0.31cm (median 0.19cm), 0.19~3.45cm (median 0.82cm), 0.14~0.70cm (median 0.21cm) between stenosed segments and upstream pancreatic ducts. 13 cases (13 / 1586.67%) had diffuse enlargement of pancreas on T _ 1WI (13 / 1586.67%), pancreatic T1WI was isotropic, and low signal intensity T _ 2WI mainly showed mixed signal in 2 cases (2 / 15 ~ 13.33%). The location of pancreatic duct stenosis was consistent with that of pancreatic parenchyma in 1 case (1 / 15 6. 67%) with pseudocyst around the pancreatic tail. Conclusion the MRCP findings of AIP pancreatic duct lesions can be divided into single segment stenosis type and multiple segment stenosis type. Most of the non-stenosis pancreatic duct do not dilate, but the pancreatic duct dilatation can not rule out AIP.
【作者單位】： 首都醫(yī)科大學(xué)附屬北京中醫(yī)醫(yī)院放射科;首都醫(yī)科大學(xué)附屬北京友誼醫(yī)院放射科;
【分類號】：R445.2;;R657.51

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