Complement 3 glomerulopathy (C3G) is diagnosed with a combination of a clinical evaluation, blood tests, urine tests, and a renal (kidney) biopsy. The only way to definitively diagnose C3G and its ...
Complement 3 glomerulopathy (C3G) is a rare kidney disorder—in many cases, the exact cause is unknown. Possible C3G causes include genetic mutations, autoantibodies, and certain autoimmune conditions.