Intravascular large B-cell lymphoma presenting with altered mental status: A case report

Figure 3 Histopathologic analysis. A: Post-mortem renal parenchyma high power view demonstrating lymphovascular cells distending the lumen of a vessel lined by epithelial cells (original magnification 40×); B: Immunohistochemical stain from an ante-mortem renal biopsy for CD20+ highlighting lymphocytes restricted to vascular spaces (original magnification 20×); C: Post-mortem pituitary section revealing extensive lymphocyte involvement of lymphovascular spaces (original magnification 20×); D: Intravascular large B-cell lymphoma within cerebral vessels with focal sludging (original magnification 20×).