| Red blood cell, shape abnormality, schistocyte | Keratocyte |
| Also known as | Horn cell |
| Definition | Fragmented red cell (a type of schistocyte) that has a pair of spicules separated by a semicircular concave segment of membrane. |
| Ddx | Helmet cells |
| Conditions associated with the shape abnormality | Thrombotic microangiopathy (TMA), macroangiopathic hemolytic anemia |
| Mechanism of formation | Formed by rupture of pseudovacuoles, which arise from the fusion of two frayed membrane ends of damaged red cells. |
| Source/author | William Aird |
| Reviewed and edited by | Parul Bhargava |
