Alterations In Erythrocyte Shape

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SPHEROCYTE

OVALOCYTE
LEPTOCYTE
ACANTHOCYTE
MEGALOCYTE

STOMATOCYTE

SCHIZOCYTE
POIKILOCYTE
DACROCYTE
ROULEAUX FORMATION

SCHIZOCYTE

 

Description:

Erythrocyte fragment, 2-4 µm in diameter, due to localized membrane damage.

Size:

2-4 µm

Shape:

Fragmented or irregularly contracted cells, varying in size from small triangular cells to cells of near normal size with markedly irregular outlines.

Significance:     

Found in patients with congenital hemolytic anemia and megaloblastic anemias. Schizocytes are also formed in hemolytic anemias due to mechanical stress (micro-angiopathy, heart valve prosthesis, severe burns), cancer and myelofibrosis.