Rectal bleeding as a presenting symptom of AL amyloidosis and multiple myeloma

Figure 1 Endoscopic and pathology figures of the polypoid lesions found in the colon (A), the duodenal ulcerations (B), and the typical Amyloid appearance in the colon (C). A: Polypoid Lesion in the descending colon; B: Ulceration of the duodenum mucosa; C: Homogeneous and amorphous Amyloid in the submucosa of the rectum (arrows).