the basal ganglia ( caudate , putamen , globus pallidus , and substantia nigra ) contained high concentrations of iron ( 10 to 19 mumol/g dry wt ) as compared to concentrations found in the cortex ( 4 mumol/g ) or the hippocampus ( 2.8 mumol/g ) .
C0004781
basal ganglia
C0038590
substantia nigra