Dense Deposit Disease

**Semantic type:** Disease or Syndrome

**Definition:** Proliferative glomerulonephritis characterized by activation of the alternative complement pathway, resulting in mesangial hypercellularity, endocapillary proliferation, and glomerular basement membrane intramembranous highly electron dense deposits.

**Synonyms:** - Membranoproliferative Glomerulonephritis Type 2 - Mesangiocapillary Glomerulonephritis Type 2