Circulating Complement Levels and C3 Glomerulopathy

Electron microscopy spectrum in C3 glomerulopathy. Electron microscopy of a single glomerulus showing features of C3GN with mesangial and capillary wall electron dense deposits in some capillary loops (A), and features of DDD with dense intramembranous deposits in other capillary loops. (B) Thin black arrow points to discrete mesangial and capillary wall deposits typical of C3GN, and thick arrows points to dense intramembranous deposits typical of DDD. Original magnification, ×4700 in A; ×6800 in B.