Anyone know what could cause someone’s serum to be this severely lipemic?

Patient came in to our outpatient cancer center for routine testing and this was their sample. When we contacted the doctor to ask if it was potentially contaminated (with heavy cream??) they said they would redraw it but never did.

Patient came in to our outpatient cancer center for routine testing and this was their sample. When we contacted the doctor to ask if it was potentially contaminated (with heavy cream??) they said they would redraw it but never did.