Gastrointestinal amyloidosis in a patient with smoldering multiple myeloma: A case report

Figure 1 Physical examination. A: Swollen tongue with teeth prints; B: Skin purpura over the right neck; C: Skin purpura around the umbilicus.

Figure 2  Gastroscopy showing gastric retention, gastric angular mucosal coarseness, hyperemia, and mild oozing of blood.

Figure 3  Colonoscopy showing mucosal hyperemia, edema with multiple ovals, irregular ulcers, ecchymosis, and hematoma involving the descending colon and sigmoid colon.

Figure 4  Congo red staining revealed positively staining deposits in the lamina propria of the colon without plasmacytic infiltration (× 400).