摘要
目的探讨自身免疫性胰腺炎(AIP)胰管病变的MRCP特征。方法回顾性分析15例AIP患者的临床及MRCP影像资料,对其胰管病变进行定性及定量分析。结果 MRCP上15例AIP患者的胰管均见狭窄(15/15,100%),表现为局部胰管不可见。9例(9/15,60.00%)同时累及腹胰管和背胰管,仅腹胰管或背胰管受累各3例(3/15,20.00%)。11例(11/15,73.33%)胰管呈单发节段性狭窄,狭窄长度2.07~4.69cm(中位数3.24cm),上游胰管管径0.14~0.31cm(中位数0.19cm);4例(4/15,26.67%)胰管呈多发节段性狭窄,狭窄长度0.19~3.45cm(中位数0.82cm),狭窄段间及上游胰管管径0.14~0.70cm(中位数0.21cm)。轴位T1WI、T2WI上,13例(13/15,86.67%)胰腺弥漫性肿大,病变胰腺T1WI呈等、低信号,T2WI稍高信号为主混杂信号;2例(2/15,13.33%)胰腺局限性肿大/肿块,其胰管狭窄部位与胰腺实质病变范围一致。1例(1/15,6.67%)胰尾周围见假性囊肿。结论 AIP胰管病变的MRCP表现可分为单节段狭窄型和多节段狭窄型,大多数的非狭窄段胰管不扩张,但胰管扩张不能排除AIP。
Objective To investigate the MRCP features of pancreatic duct lesions in autoimmune pancreatitis（AIP）.Methods Clinical and MRCP data of 15 patients with AIP were retrospectively analyzed,and the pancreatic duct lesions were qualitatively and quantitatively analyzed.Results The pancreatic duct stenosis was found in 15patients（15/15,100%）,which was not visible in local pancreatic duct.Both ventral pancreatic duct and dorsal pancreatic duct were involved in 9cases（9/15,60.00%）,only ventral pancreatic duct or dorsal pancreatic duct were involved in 3cases（3/15,20.00%）.11cases（11/15,73.33%）showed single segmental stenosis of pancreatic duct,the stenotic length was 2.07—4.69cm（median 3.24cm）,its upstream pancreatic duct diameter was 0.14—0.31cm（median 0.19cm）;4cases（4/15,26.67%）showed multiple segmental stenosis,the stenotic length was 0.19—3.45cm（median 0.82cm）,its upstream pancreatic duct diameter was 0.14—0.70cm（median 0.21cm）.In axial T1 WI and T2 WI,pancreatic parenchyma showed diffuse enlargement in 13cases（13/15,86.67%）,appeared as hypo-intense on T1 WI,mixed hyper-intense on T2WI;focal enlargement（block）of the pancreas in 2cases（2/15,13.33%）,pancreatic parenchymal lesions and pancreatic duct stenosis were in the same range.Pseudocyst around the pancreatic tail was seen in 1case（1/15,6.67%）.ConclusionMRCP features of pancreatic duct disorders in AIP can be divided into single segment stenosis type and multiple segment stenosis type,and non-stenotic segments are not dilated often,but dilatation of pancreatic duct can not rule out AIP.
作者
张斌斌
靳二虎
ZHANG Binbin JIN Erhu(Department of Radiology, Beijing Traditional Chinese Medicine Hospital, Capital Medical University, Beij ing 100010, China Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China)
出处
《中国医学影像技术》
CSCD
北大核心
2017年第2期232-236,共5页
Chinese Journal of Medical Imaging Technology
关键词
自身免疫性胰腺炎
胰管
磁共振胰胆管造影术
Autoimmune pancreatitis
Pancreatic duct
Magnetic resonance cholangiopancreatography
