Revision 3 for 'Intraductal papillary neoplasm of the bile duct'

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Intraductal papillary neoplasm of the bile duct

Intraductal papillary neoplasms of the bile duct (IPNB) are pre-invasive biliary tree neoplasms considered to be precursor lesions of cholangiocarcinoma


IPNB has been reported to be more frequently in Asia, in regions where hepatolithiasis and clonorchiasis are endemic 6


Microscopic appearance

Different from the intraductal papillary neoplasms of the pancreas (IPMN), which are
commonly lined by mucinous epithelium, IPNBs are lined by biliary epithelium 4.

 intracellular mucin production of varying degrees. 


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