case_images: PMC10827378_01
case_images: An endoscopic image showing a 5 mm polyp in the ascending colon (a) and an area of moderately congested mucosa in the transverse colon (b) and rectum (c and d).
case_images: CRIGM2024-6679725.001.jpg
case_images: PMC10827378_01_CRIGM2024-6679725.001.jpg
case_images: fig1
case_images: Colonoscopy demonstrated an area of moderately congested rectal mucosa and a 5 mm sessile polyp in the ascending colon (Figure 1).
case_images: Gastric and colorectal mucosal biopsies with H&E staining (a and b) showing pinkish proteinaceous deposits consistent with amyloid deposition. (c) An electron microscopy image showing amyloid deposits in small blood vessels and smooth muscles in the gut.
case_images: CRIGM2024-6679725.002.jpg
case_images: PMC10827378_01_CRIGM2024-6679725.002.jpg
case_images: fig2
case_images: AA (Figure 2), consistent with gastrointestinal amyloidosis. A renal biopsy ruled out organ rejection and renal amyloidosis.