Autosomal Recessive Hypercholesterolemia Due to a Novel Homozygous LDLRAP1 Frameshift Mutation.
BACKGROUND Autosomal recessive hypercholesterolemia (ARH) is a rare genetic disorder caused by biallelic pathogenic variants in LDLRAP1 and may closely mimic homozygous familial hypercholesterolemia. CASE SUMMARY A 15-year-old boy presented with painless xanthomas over the buttocks and elbows and severe hypercholeste...