Fig. 1
From: PLA2R-positive membranous nephropathy in IgG4-related disease
On FDG PET-CT hyperaccumulation was observed in the left lung and right pleura (A). Light microscopy of the resected lung tumor shows lymphoplasmacytic proliferation, and storiform fibrosis on intervening stroma. HE staining, original magnification × 100 (B). Immunohistochemistry microscopy showed IgG4-positive plasma cells in the specimen,IgG4/IgG ratio 0.81. IgG4 staining, original magnification × 200 (C), IgG staining, original magnification × 200 (D)