In cats with CIE, higher fCal concentrations were moderately correlated with higher serum globulin (ρ = 0.48, p = 0.0104) and lower serum albumin (ρ =−0.45, p = 0.0165), BUN (ρ = −0.46, p = 0.0162), cobalamin (ρ = −0.40, p = 0.0335), and folate (ρ = −0.42, p = 0.03154) concentrations. Here, ALB is linked to congenital non-bullous ichthyosiform erythroderma.