OBJECTIVE: @entity4929 ( @entity4929 ) of the bile duct is a newly described pathologic entity characterized by the presence of @entity5 , which sometimes produce a large amount of @entity3558 and form a @entity5 . @entity4929 of the bile duct is different from @entity9296 or @entity7157 in that the former produces intraductal microscopic and macroscopic @entity43 , whereas the latter produce a @entity3558 -containing septate @entity5 without communication with bile duct and with @entity43 in the cyst wall. The purpose of this study was to evaluate the potential relationships between cyst-forming IPNs of the bile duct and peribiliary glands and also @entity4929 of the @entity788 . MATERIALS AND METHODS: From a cohort of 87 @entity1 with surgically resected and pathologically proved @entity4929 of the bile duct, 12 @entity1 with @entity4929 of the bile duct who underwent CT (n = 12), MRCP (n = 3), ultrasound (n = 3), and ERCP (n = 4) were included. Imaging findings were evaluated for the relationship of @entity5 to the bile ducts; in particular, a @entity7261 -like appearance was considered as suggestive of the peribiliary gland origin. Pathologic examination was conducted, and both gross and microscopic findings were recorded. RESULTS: Radiologic examination revealed @entity439 -like dilatation of the involved bile ducts in five @entity1 and intrahepatic @entity5 in two @entity1 . Interestingly, the remaining five @entity1 had @entity7261 -like @entity5 with or without communication; one @entity1 had a @entity5 laterally attached to the extrahepatic bile duct. Histopathologically, @entity5 are lined by atypical biliary epithelium showing intracystic papillary proliferation, with an appearance similar to that of @entity788 . CONCLUSION: This study suggests that cyst-forming @entity4929 of the bile duct may be a biliary counterpart to @entity788 . In particular, at least some of the @entity5 seem to arise from peribiliary glands, and these cases might be a counterpart to branch-duct @entity4929 of the @entity788 , given the histologic similarity between peribiliary glands and @entity788 .

Cyst-forming XXXX of the bile ducts: description of imaging and pathologic aspects.

@entity43 :: ('MESH:D010051', 'Disease') :: ['ovarian-like stroma', 'papillary tumors without ovarian-like stroma'] @entity1 :: ('9606', 'Species') :: ['patient', 'patients'] @entity788 :: ('MESH:D010190', 'Disease') :: ['pancreas', 'pancreatic branch ducts', 'pancreatic intraductal papillary mucinous neoplasm'] @entity4929 :: ('MESH:C565310', 'Disease') :: ['cystic IPN', 'IPN', 'Cystic IPN', 'intraductal papillary mucinous neoplasm', 'Intraductal papillary neoplasm', 'intraductal papillary mucinous neoplasms'] @entity5 :: ('MESH:D009369', 'Disease') :: ['intraluminal tumors', 'cystic tumor', 'cystic tumors', 'biliary cystic tumor', 'tumors'] @entity7261 :: ('MESH:D004240', 'Disease') :: ['diverticulum'] @entity439 :: ('MESH:D000783', 'Disease') :: ['aneurysm'] @entity3558 :: ('100508689', 'Gene') :: ['mucin'] @entity9296 :: ('MESH:D003537', 'Disease') :: ['biliary cystadenoma'] @entity7157 :: ('MESH:D003536', 'Disease') :: ['cystadenocarcinoma']
@entity4929 :: (MESH:C565310,Disease) :: ['intraductal papillary neoplasm']
