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Localized amyloid tumor in small bowel
M O Peny1, J C Debongnie, J Haot
1Department of Pathology, Erasme University Hospital, Brussels, Belgium.
Abstract:
We report a case of localized jejunal amyloidosis occurring in a 74-year-old man who experienced an episode of digestive bleeding while he was receiving oral anticoagulation. It illustrates a rare entity, characterized by an endoscopic aspect of polypoid, pseudotumoral formations. Histologically, submucosal connective tissues, muscularis mucosae, and blood vessel walls are massively infiltrated by amyloid, giving a typical red/green birefringence under polarized light.
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