Autoimmune pancreatitis: radiologic findings in 20 patients View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2005-12-07

AUTHORS

D. H. Yang, K. W. Kim, T. K. Kim, S. H. Park, S. H. Kim, M. H. Kim, S. K. Lee, A. Y. Kim, P. N. Kim, H. K. Ha, M.-G. Lee

ABSTRACT

BackgroundAutoimmune pancreatitis is a new clinical entity that is characterized by peculiar histopathologic and laboratory findings and by a dramatic clinical response to corticosteroid therapy. We evaluated the radiologic findings of autoimmune pancreatitis.MethodsComputed tomographic, magnetic resonance imaging, endoscopic retrograde cholangiopancreatographic, and ultrasonographic findings of 20 patients with autoimmune pancreatitis in our hospital between November 2000 and December 2003 were retrospectively reviewed regarding changes and ancillary findings in the pancreatic parenchyma, the main pancreatic duct, peripancreatic vessels, and distal common bile duct. In addition, follow-up images were reviewed for changes in any abnormality seen on the initial examinations.ResultsPancreatic parenchymal enlargement was invariably seen that was diffuse (n = 19) or focal (n = 1), with homogeneous contrast enhancement on computed tomography (n = 20) and magnetic resonance imaging (n = 15). Capsule-like rim enhancement was seen in six patients. There was focal (n = 18) or diffuse (n = 2) narrowing of the main pancreatic duct and it was usually multifocal (n = 17) in the former. Narrowing of the peripancreatic veins was seen in 14 patients. There was tapered (n = 15) or abrupt (n = 3) narrowing of the distal common bile duct in 18 patients, with contrast enhancement of the narrowed segment in eight. Invariably, changes in the pancreatic parenchyma, main pancreatic duct, peripancreatic vessels, and common bile duct were normalized on follow-up studies after steroid therapy.ConclusionIn this series, common radiologic findings of autoimmune pancreatitis were (a) diffuse pancreas enlargement, (b) multifocal narrowing of the main pancreatic duct, (c) narrowing of peripancreatic veins, and (d) tapered narrowing of the distal common bile duct with frequent contrast enhancement. These findings were usually reversible with steroid therapy. More... »

PAGES

94-102

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s00261-005-0047-8

DOI

http://dx.doi.org/10.1007/s00261-005-0047-8

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1050492527

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/16333694


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27 schema:description BackgroundAutoimmune pancreatitis is a new clinical entity that is characterized by peculiar histopathologic and laboratory findings and by a dramatic clinical response to corticosteroid therapy. We evaluated the radiologic findings of autoimmune pancreatitis.MethodsComputed tomographic, magnetic resonance imaging, endoscopic retrograde cholangiopancreatographic, and ultrasonographic findings of 20 patients with autoimmune pancreatitis in our hospital between November 2000 and December 2003 were retrospectively reviewed regarding changes and ancillary findings in the pancreatic parenchyma, the main pancreatic duct, peripancreatic vessels, and distal common bile duct. In addition, follow-up images were reviewed for changes in any abnormality seen on the initial examinations.ResultsPancreatic parenchymal enlargement was invariably seen that was diffuse (n = 19) or focal (n = 1), with homogeneous contrast enhancement on computed tomography (n = 20) and magnetic resonance imaging (n = 15). Capsule-like rim enhancement was seen in six patients. There was focal (n = 18) or diffuse (n = 2) narrowing of the main pancreatic duct and it was usually multifocal (n = 17) in the former. Narrowing of the peripancreatic veins was seen in 14 patients. There was tapered (n = 15) or abrupt (n = 3) narrowing of the distal common bile duct in 18 patients, with contrast enhancement of the narrowed segment in eight. Invariably, changes in the pancreatic parenchyma, main pancreatic duct, peripancreatic vessels, and common bile duct were normalized on follow-up studies after steroid therapy.ConclusionIn this series, common radiologic findings of autoimmune pancreatitis were (a) diffuse pancreas enlargement, (b) multifocal narrowing of the main pancreatic duct, (c) narrowing of peripancreatic veins, and (d) tapered narrowing of the distal common bile duct with frequent contrast enhancement. These findings were usually reversible with steroid therapy.
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35 abnormalities
36 abrupt narrowing
37 addition
38 ancillary findings
39 autoimmune pancreatitis
40 bile duct
41 capsule-like rim enhancement
42 changes
43 clinical entity
44 clinical response
45 common bile duct
46 common radiologic findings
47 computed tomography
48 contrast enhancement
49 diffuse
50 distal common bile duct
51 dramatic clinical response
52 duct
53 endoscopic retrograde cholangiopancreatographic
54 enhancement
55 enlargement
56 entities
57 examination
58 findings
59 follow
60 histopathologic
61 homogeneous contrast enhancement
62 hospital
63 images
64 imaging
65 initial examination
66 laboratory findings
67 magnetic resonance imaging
68 main pancreatic duct
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70 narrowing
71 new clinical entity
72 pancreas enlargement
73 pancreatic duct
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76 parenchyma
77 parenchymal enlargement
78 patients
79 peripancreatic veins
80 peripancreatic vessels
81 radiologic findings
82 resonance imaging
83 response
84 rim enhancement
85 segments
86 series
87 steroid therapy
88 study
89 tapered narrowing
90 therapy
91 tomography
92 ultrasonographic findings
93 vein
94 vessels
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