Small bowel (small intestine)

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Small bowel (small intestine)

Benign tumors and tumor-like conditions

Amyloidosis

Reviewer: Hanni Gulwani, M.D. (see Reviewers page)
Revised: 12 December 2012, last major update August 2012
Copyright: (c) 2003-2012, PathologyOutlines.com, Inc.

General
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● Rare in duodenum (Int J Clin Exp Pathol 2012;5:46)
● Typically diagnosed with rectal biopsy that includes submucosa
● Primary: GI involvement in 70% of cases, amyloid in blood vessel walls and muscularis propria
● Secondary: GI involvement in 50% of cases, often deposits in blood vessel walls in lamina propria

Micro images
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Amyloidosis of duodenum

End of Small bowel (small intestine) > Benign tumors and tumor-like conditions > Amyloidosis

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