Review of lymphoma in the duodenum: An update of diagnosis and management

Figure 6 Representative endoscopic and pathological images of duodenal mantle cell lymphoma (Cases 10–12). A: Case 10. Elevated lesion with erosions on the surface in the duodenum; B: Case 11. Typical morphology of mantle cell lymphoma showing multiple lymphomatous polyposis in the duodenum. Subepithelial lesion-like protruded lesions accompanying dilated vasculature on the surface are seen; C: Case 12. Numerous, diffuse polypoid lesions in the duodenum; D–K: Pathological images of Case 12. Lymphoma cells retain a homogeneous pattern of cell size on hematoxylin and eosin stain (D: × 10, E: × 40). Cells are positive for CD20, CD5, Cyclin D1, BCL2, while negative for CD3 and CD10. HE: Hematoxylin and eosin.