Diagnosis of follicular lymphoma by laparoscopy: A case report

Figure 1 Pathological results of gastric biopsy. A: Visible mucosal glands are still well differentiated, with many lymphocytes and a small number of eosinophils infiltrating in the stroma observed under a light microscope (magnification, 100×); B: Mild intestinal metaplasia of mucosal glands and a small amount of interstitial lymphocyte, plasma cell, and eosinophil infiltration under a light microscope (magnification, 200×).

Figure 2 Pathological results of colon biopsy. A: The glandular differentiation is still good and there are many inflammatory cells infiltrating in the interstitial tissues (magnification, 100×); B: Large numbers of lymphocytes and a small amount of eosinophil infiltration (magnification, 200×).

Figure 3 Cytology results of ascites. A: A large number of lymphocytes can be seen under a light microscope (magnification, 100×); B: A large number of lymphocytes are visible under a light microscope (magnification, 200×). The mesothelial cells, phagocytes, and a few eosinophils can be seen.

Figure 4 Omental histopathological examination. A: Lymphoid hyperplasia in omental adipose tissue; B: Some follicles were fused, and no typical cuff was observed. The follicular node was seen under a light microscope (magnification, 200×). The section consists of central cells and centroblasts, and the number of centroblasts is > 15/HPF.

Figure 5 Results of omental immunohistochemistry (100×). A: Staining for CD20 is diffuse and strongly positive; B: Staining for CD10 is positive; C: Staining for CD3 is negative; D: Staining for Bcl-2 is negative; E: Staining for Bcl-6 is positive; F: Ki-67 positive rate is approximately 60%.