A case of mucosa-associated lymphoid tissue lymphoma forming multiple lymphomatous polyposis in the small intestine

Figure 1 EGD (A), dye contrast EGD (B), EUS (C), and lower endoscopy (D) showing features of the lesions.

Figure 2 Fluoroscopic examinations showing many small round shaped defects in the second portion of the duodenum (A), jejunum (B), and ileum (C).

Figure 3 Follicular colonization (A) and many small lymphocytes and a few large lymphocytes in the duodenal tissues (B) in the biopsied specimens (HE, × 200)

Figure 4 Immunohistological profiles of the lesions revealing positive staining for bcl-2 (A) and negative staining for CD5 (B), CD10 (C), and CyclinD1 (D).

Figure 5 Endoscopic features of the lesions before and after the treatment.