Localized Gastrointestinal ALλ Amyloidosis

A 58-year-old man visited our hospital because of a positive fecal occult blood test. He did not complain of any symptoms. Physical findings and laboratory tests were unremarkable. Colonoscopic examination showed polypoid lesions on the ileocecal valve (Figure A), and stenosis owing to multiple elevated lesions in the terminal ileum (Figure B). Biopsy specimens showed significant amyloid depositions by Congo-red staining (Figure C), and they were positive for ALλ. Other lesions were not found except in the gastrointestinal tract, and the patient was diagnosed with localized gastrointestinal ALλ amyloidosis.

https://ift.tt/2EnjCGG