Endoscopic diagnosis of small intestinal amyloidosis

[Obstructive jaundice caused by duodenal amyloidosis succesfully treated with surgery]

We present a case of obstructive jaundice due to duodenal amyloidosis presenting as a bulbar pseudotumor (amyloidoma). The duodenal and biliary obstruction were treated by double bypass, hepatojejunostomy and gastroenterostomy. Our case suggests that surgical palliative treatment may be effective, and that anastomosis is probably safe, allowing the patient a good quality of life.

Localized amyloid tumor in small bowel

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.