since these lipoproteins are rich in unesterified cholesterol and lecithin , two polar lipids that form a substantial part of the surfaces of chylomicrons , components of chylomicron surfaces may accumulate in the patient 's plasma following enzymic removal of chylomicron triglyceride and contribute to several of the abnormal lipoproteins .
C0008731
chylomicron
C0023820
lipoproteins