About the same size as a normal RBC
Slit-like or mouth-like central pallor (Hence the term stoma )
Increased in:
Hereditary stomatocytosis
Liver disease
Tangier disease
Rh null ...
Stomatocytes: [fish mouth- like] (RBC’s Alterations)
Seen in patients with: Hereditary stomatocytosis (results in haemolytic anaemia)