3 results
Several artifacts can cause significant and potentially misleading alterations to measured RBC parameters: 
1. Old samples
#Elliptocytes #Ovalocytes ... Keratocyte #Blister #HelmetCells
Pathologic Red Blood Cell (RBC) Morphologies and Associated Diseases

Acanthocyte (spur cell),  
Basophilic stippling, 
Bite cell,
Elliptocyte, Macro-ovalocyte
Schistocytes can assume a shape resembling natural or man-made objects such as arrowheads, fish, collar buttons,
Smear #Helmet #HelmetCells