hyperchylomicronemia increased circulating chylomicron numbers MP:0009699 increased plasma concentrations of chylomicrons, the large lipid droplet (up to 100 mm in diameter) of reprocessed lipid synthesized in epithelial cells of the small intestine and containing triacylglycerols, cholesterol esters, and several apolipoproteins MPheno.ontology increased plasma chylomicron levels increased serum chylomicron numbers abnormal circulating lipoprotein level