Fig. 2
From: An uncommon mimicker of renal malignancy: IgG4-related disease
A Histopath slide showing ureter surrounded by inflammatory cell infiltrate and fibrosis. B Inflammatory infiltrate includes lymphocytes and plasma cells, involving small veins and venules. C Infiltrate also extends into inferior vena cava. D Immunohistochemical staining for IgG4 highlights abundant plasma cells, in keeping with IgG4-related disease