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Gallbladder

Benign gallbladder tumors

Hyperplastic / metaplastic polyp


Reviewer: Hanni Gulwani, M.D. (see Reviewers page)
Revised: 14 February 2013, last major update September 2012
Copyright: (c) 2003-2013, PathologyOutlines.com, Inc.

General
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● Common - 25% of benign polyps

Case reports
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● 9 year old girl with pancreaticobiliary maljunction (Pediatr Surg Int 2009;25:999)

Gross description
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● < 5 mm, brown-gray, granular or villiform, sessile or pedunculated, usually multiple

Micro description
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● Usually nodules of pyloric-type glands

Differential diagnosis
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Gastric heterotopia: also parietal and chief cells

End of Gallbladder > Benign gallbladder tumors > Hyperplastic / metaplastic polyp


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