Fig. 2From: Characteristic electron-microscopic features of cryofibrinogen-associated glomerulonephritis: a case reportPatient’s serum (A) and EDTA plasma (B) were stored for 48 h at 4 °C, after which they were stored for 18 h at 37 °C (A, B). Cryoprotein was precipitated from plasma but not from serum. The cryoprecipitate redissolved at 37 °CBack to article page