68977965_Xanthomas__DermNet_NZ__Cause
[Fredrickson classifcation] Polygenic familial combined hyperlipidaemia: Type IIb [Biochemical findings] Raised total cholesterol Raised triglyceride Low HDL cholesterol Increased VLDL cholesterol LDL may be normal level but denser and more likely to cause atheroma [Cause] 
Mixed genetic and lifestyle causes
Xanthomas. DermNet NZ
Cause