6 results
Several artifacts can cause significant and potentially misleading alterations to measured RBC parameters: 
1. Old samples
Poikilocytosis #CabotRings ... Acanthocytes #TearCells #Dacrocytes
Dacrocytes (tear drop cells) 
Other poikilocytes resemble a pear or teardrop. The narrow, tapered end
may be
Dacrocytes (tear ... A dacrocyte is seen ... Dacrocytes are found ... #Blood #Smear #Dacrocytes
Causes of Anemia with Normal Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased WBCs
 - Decreased/NormaI
Polychromatic Macrocytes ... Polychromatic Macrocytes
A – cabot ring, B – Howell-Jolly Body

What are Cabot’s rings?
- They are delicate threadlike inclusions
Microscopy #BloodSmear #CabotRings
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
• Drugs Oval Macrocytes
Morphologic Findings in Red Blood Cells
Basophilic stippling - Small blue dots in red cells, due to
fragmentation Dacrocytes