We report an 8-year-old girl with lipoprotein glomerulopathy who may h
ave developed this condition as young as 4 years of age, To our knowle
dge this is the youngest reported case of this disease. Lipid studies
of the patient and her family members revealed elevated concentrations
of apolipoprotein E (ape E), the apo E phenotype E2/3, and the genoty
pe E3/3. However, other families revealed no urinary abnormalities, Ou
r findings suggest that an apo E abnormality may be responsible for th
e development of lipoprotein glomerulopathy, Genetic analysis of apo E
is needed to clarify the pathogenesis.