#spur cells
- Acanthocyte — A pathologically altered erythrocyte (red blood cell) characterized by an abnormal spherical or star-like shape, displaying multiple rigid, sharp cytoplasmic protrusions (spicules) of irregular length and distribution across its membrane. This morphological change (acanthocytosis) is caused by membrane lipid abnormalities and is encountered in severe conditions such as abetalipoproteinemia, advanced liver diseases, or neuroacanthocytosis.