oligomeganephronia DOID:0111142 GARD:0004066 GARD:4066 ICD10:Q60.4 MONDO:0016407 NCIT:C123202 Oligomeganephronia is a developmental anomaly of the kidneys, and the most severe form of renal hypoplasia, characterized by a reduction of 80% in nephron number and a marked hypertrophy of the glomeruli and tubules. Oligomeganephronic renal hypoplasia Orphanet:2260 SCTID:18417009 UMLS:C0431694 non-syndromic renal or urinary tract malformation