Submucosal hematoma is a highly suggestive finding for amyloid light-chain amyloidosis: Two case reports

Figure 2 Endoscopic biopsies were performed for the submucosal hematomas. A: Colonoscopy showing submucosal hematomas from the ascending colon to the rectum; B and C: Biopsy showing mucosal hemorrhages and deposition of amorphous material in the lamina propria and in the vessel walls of the submucosa (hematoxylin-eosin stain and direct fast scarlet stain); D: Staining with κ was positive.