Pancreatic Heterotropia in wall of Extra-hepatic Choledochal Cysts: A Retrospective Analysis of Thirteen of such cases from North India

Publication date: Available online 25 July 2017
Source:Pathology - Research and Practice
Author(s): Pragya Sharma, Tripti Nakra, Gaurav Khanna, Rajni Yadav, Rajesh Panwar, Madhusudhan KS, Khushbu khetan, Nihar R Dash, Sujoy Pal, Peush Sahni, Siddhartha Datta Gupta, Prasenjit Das
IntroductionHeterotopic pancreas (HP) has rarely been identified in the wall of choledochal cyst (CC).MethodsRetrospectively we screened 200 excised specimens of CC received at our Institute over a period of last eight years and looked for presence of HP rests in them. All the specimens were processed in their entirety.ResultHP was identified in the wall of 13 (6.5%) CCs, out of which 11 were Heinrich Type 2, and two were Heinrich Type 1. In half of the cases peribiliary mucous glands were observed intermingled with the HP rests. Features of chronic fibrosing pancreatitis were identified in these rests, with ulceration of overlying cyst lining.ConclusionsHP rests in the wall of CC though rare; their coexistence with peribiliary glands may possibly indicate their common embryonic origin. As a common site of inflammation, HP rest may be one of the common causes of CC.



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