| Absent chylomicrons | Fat malabsorption, fat-soluble vitamin deficiency |
| Absent LDL | Reduced cholesterol delivery to tissues |
| Absent VLDL | Impaired triglyceride transport |
| Acanthocytosis | Altered membrane lipid composition |
| Low vitamin E | Severe antioxidant deficiency in nervous system |
| Databases | OMIMOrphanetClinicalTrialsPubMed |