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Ampulla of Vater


Frozen section

Reviewer: Hanni Gulwani, M.D. (see Reviewers page)
Revised: 11 December 2012, last major update August 2012
Copyright: (c) 2003-2012, PathologyOutlines.com, Inc.


● Major criteria for malignancy are nuclear size variation of at least 4:1 between ductal epithelial cells, incomplete ductal lumens, disorganized duct distribution
● Minor criteria are huge, irregular epithelial nucleoli, necrotic glandular debris, glandular mitoses, glands unaccompanied by connective tissue stroma within smooth muscle bundles, perineural invasion (Am J Surg Pathol 1981;5:179)

End of Ampulla of Vater > Miscellaneous > Frozen section

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