<prompt>  A 20 year old male patient presents with the chief complaint of pain in abdomen. General examination reveals xanthomas present in clusters on back, buttocks and arms, legs. On percussion, hepatomegaly and splenomegaly can be appreciated. On blood investigations, LDL level decreased and HDL normal.Which is the most probable diagnosis?Familial Chylomicronemia Syndrome FCS-Type IFamilial Dysbeta lipoproteinemia FDBL- Type IIIFamilial Hypertriglyceridemia FHTG-Type IVFamilial Combined Hyperlipidemia FCHL-Type IIb 