case_images: PMC5586883_01
case_images: Surgical specimen showing the gastric wall diffusely thickened and ulcerated.
case_images: mpp-0023-0377-g01.jpg
case_images: PMC5586883_01_mpp-0023-0377-g01.jpg
case_images: F1
case_images: The gastrectomy measured 35.5 cm along the greater curvature and 11.5 cm along the lesser curvature and showed a diffusely thickened wall with ulcerated mucosa involving fundus to antrum (fig. 1).
case_images: High-power histopathological analysis of gastric tissue showing the concomitant presence of a signet ring cell carcinoma associated with MALT-lymphoma. HE. x400.
case_images: mpp-0023-0377-g02.jpg
case_images: PMC5586883_01_mpp-0023-0377-g02.jpg
case_images: F2
case_images: The related histopathological findings showed intermingled areas of poorly differentiated signet ring cell carcinoma and diffuse monotonous sheets and nodules of small lymphoid cells with centrocyte morphology (fig. 2).
case_images: Histopathological analysis of gastric tissue, in which lymphoid cells show a strong positivity for CD20 at immunohistochemical assay. HE. x200.
case_images: mpp-0023-0377-g03.jpg
case_images: PMC5586883_01_mpp-0023-0377-g03.jpg
case_images: F3
case_images: At immunohistochemical assay, the lymphoid cells were diffusely positive for CD20 (fig. 3) and BCL2 and focally positive for CD43.