23 results
Several artifacts can cause significant and potentially misleading alterations to measured RBC parameters: 
1. Old samples
#TargetCells #Codocytes ... Schistocytes #Pyknocytes #Elliptocytes
Elliptocyte - 
Note the shape of these appropriately named erythrocytes.
In addition to hereditary elliptocytosis, elliptocytes can
Elliptocyte - ... elliptocytosis, elliptocytes ... #Blood #Smear #Elliptocyte
Codocytes (Target cells) - Two target cells are seen in the left photo and one in
Codocytes (Target ... #Blood #Smear #Codocytes
Glomerular Diseases - Nephritic and Nephrotic Syndromes

Nephritic syndrome—due to GBM disruption. 
Hypertension. t BUN and creatinine.
Nephrotic yndrome—podocyte ... 10 (eg direct podocyte ... damage) or 20 (podocyte
Pathologic Red Blood Cell (RBC) Morphologies and Associated Diseases

Acanthocyte (spur cell),  
Basophilic stippling, 
Bite cell,
Bite cell, Elliptocyte
Spectrum of Glomerular Diseases
Nephrotic - Mechanism:
 • Injury to podocytes
 • Changed architecture: Scanning. Deposition of
• Injury to podocytes
Innate Immune Cells - Pathophysiology
The innate immune system consists of granulocytes, mast cells, natural killer cells,
killer cells, and monocytes ... Monocytes and neutrophils ... Monocytes and B-cells
Characteristics of Selected Pneumonias

Streptococcus pneumoniae (pneumococcus). Gram-positive diplococci. 
Haemophilus influenzae. Pleomorphic gram-negative coccobacilli. 
Staphylococcus aureus. Plump
PMNs and monocytes
Red Blood Cell (RBC) Morphology Atlas
 • Microcytic - Iron-deficiency anemia, Thalassemia, Sideroblastic anemia, Lead poisoning
Myeloproliferative anemia • Elliptocytes
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
pyropoikilocytes, elliptocytes