case_images: PMC11151415_01
case_images: Histopathology of plasmablastic lymphoma kidney infiltration. (a) Low power haemotoxylin and eosin view of the plasmablastic lymphoma and kidney cortex (asterisk). (b) High power haemotoxylin and eosin view of large plasmablastic cells with frequent mitotic figures. (c) Diffuse CD138 membranous positive staining in the lymphoma. (d) Diffuse MUM1 nuclear positive staining in the lymphoma. (e) Diffuse nuclear positive Epstein-Barr encoding ribonucleic acid in situ hybridisation in the lymphoma.
case_images: SAJID-39-637-g001.jpg
case_images: PMC11151415_01_SAJID-39-637-g001.jpg
case_images: F0001
case_images: The tumour cells stained diffusely positive with MUM1 and CD138 immunohistochemical stains as well as Epstein-Barr encoding ribonucleic acid (EBER) in situ hybridisation (Figure 1a-e).
case_images: Histopathology of tubular casts. (a) High power view of the haemotoxylin and eosin section shows renal cortex with eosinophilic tubular casts and surrounding mononuclear cells (arrows). (b) The casts stain weakly positive with periodic acid Schiff (arrows). (c) Haemotoxylin and eosin section shows unremarkable glomeruli.
case_images: SAJID-39-637-g002.jpg
case_images: PMC11151415_01_SAJID-39-637-g002.jpg
case_images: F0002
case_images: The Congo red stain was negative for amyloidosis and the tubular casts were weakly periodic acid-Schiff stain positive (Figure 2a-c).