DDD and C3GN are distinguishable by the appearance and localization of deposits on electron microscopy. However, their report did not discuss the significance of detecting different types of immunoglobulin, including IgG and IgM, and CG was also not mentioned. In summary, when underlying diseases (including lymphoproliferative disorders, autoimmune diseases, infectious diseases such as post-streptococcal glomerulonephritis, and liver disease due to hepatitis B or alcohol abuse) are excluded, MPGN diagnosed by LM and EM can be divided

into cases with deposition of C3 plus immunoglobulin (IgM dominant or IgG dominant) and cases with C3 deposition only. IgM-dominant deposition occurs in cryo-positive CG, which is either HCV-positive or HCV-negative (‘essential’). In selleck kinase inhibitor contrast, the IgG-dominant type is cryo-negative and can be classified as PGNMID or ‘idiopathic’. If there is deposition of C3 only, the disease is classified as DDD or C3GN. Conflict of interest None. Open AccessThis article is distributed under the terms of the Creative PP2 datasheet Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s)

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