case_images: PMC5016814_01
case_images: CT chest with contrast showing bilateral pulmonary opacities.
case_images: JCHIMP-6-31707-g001.jpg
case_images: PMC5016814_01_JCHIMP-6-31707-g001.jpg
case_images: F0001
case_images: Computed tomography (CT) of the chest with intravenous contrast showed bilateral pulmonary opacities and mediastinal lymphadenopathy in the perivascular and posterior mediastinum (Fig. 1).
case_images: CT abdomen and pelvis showing bowel wall thickening.
case_images: JCHIMP-6-31707-g002.jpg
case_images: PMC5016814_01_JCHIMP-6-31707-g002.jpg
case_images: F0002
case_images: CT of the abdomen and pelvis with contrast showed severe gastric wall thickening involving the proximal body and fundus with surrounding inflammatory changes (Fig. 2).
case_images: Gastric biopsy showing small lymphocytic infiltration with glandular involvement in the H&E stain.
case_images: JCHIMP-6-31707-g003.jpg
case_images: PMC5016814_01_JCHIMP-6-31707-g003.jpg
case_images: F0003
case_images: Gastric pathology showed an intense infiltrate of small, mature lymphocytes extending to the epithelium and obliteration of normal glandular architecture; immune-histochemical staining showed CD20+ and abnormal dim CD43 co-expression (Figs. 3 and 4) and BCL2+ and low to moderate Ki-67 proliferation index suggestive of extra-nodal marginal zone B-cell lymphoma of mucosal-associated lymphoid tissue.
case_images: Positive immunohistochemistry stains in the gastric biopsy.
case_images: JCHIMP-6-31707-g004.jpg
case_images: PMC5016814_01_JCHIMP-6-31707-g004.jpg
case_images: F0004
case_images: Gastric pathology showed an intense infiltrate of small, mature lymphocytes extending to the epithelium and obliteration of normal glandular architecture; immune-histochemical staining showed CD20+ and abnormal dim CD43 co-expression (Figs. 3 and 4) and BCL2+ and low to moderate Ki-67 proliferation index suggestive of extra-nodal marginal zone B-cell lymphoma of mucosal-associated lymphoid tissue.
case_images: Transbronchial biopsy specimen showing lymphocytic Infiltration on H&E staining.
case_images: JCHIMP-6-31707-g005.jpg
case_images: PMC5016814_01_JCHIMP-6-31707-g005.jpg
case_images: F0005
case_images: Subsequently, he also underwent bronchoscopy with transbronchial biopsy of the right upper and middle lobes, which showed atypical lymphoid infiltrate consistent with involvement from known MALT lymphoma with CD20+ and dim CD43 co-expression (Figs. 5 and 6).
case_images: Positive immunohistochemistry stains in the transbronchial biopsy specimen.
case_images: JCHIMP-6-31707-g006.jpg
case_images: PMC5016814_01_JCHIMP-6-31707-g006.jpg
case_images: F0006
case_images: Subsequently, he also underwent bronchoscopy with transbronchial biopsy of the right upper and middle lobes, which showed atypical lymphoid infiltrate consistent with involvement from known MALT lymphoma with CD20+ and dim CD43 co-expression (Figs. 5 and 6).