LPL and hyperinsulinemic hypoglycemia, familial, 4: No thrombophilia-related gene mutation was detected, but a heterozygous mutation in lipoprotein lipase (LPL) gene (c.547G > A) was identified (Fig. 3A, B), which is associated with autosomal recessive inheritable LPL deficiency, indicating a high likelihood of hyperlipidemia.