Morphology Hierarchy

  1. Red Blood Cell
    1. Hemogram
      1. Hyperchromia
      2. Polychromasia
      3. Hypochromia (hypochromasia)
      4. Macrocytosis
      5. Microcytosis
      6. Anisocytosis
    2. Morpholology
      1. Poikilocytes
      2. Normocytes/Discocytes
      3. Codocytes/target cells
      4. Elliptocytes/Ovalocytes/Pencil cells
      5. echinocytes/crenated cells
      6. acanthocytes/spur cells
      7. drepanocytes/sickle cells
      8. dacrocytes/tear drop cells
      9. degmacytes/blister/helmet/bite cells
      10. schistocytes
      11. spherocytes
      12. stomatocytes
    3. Inclusions
      1. Hemosiderin
      2. hemoglobin E crystals/Bars of gold
      3. Howell Jolley Bodies
      4. Basophillic stippling
      5. pappenheimer bodies
    4. other RBC observations
      1. Rouleaux
      2. Erythroblast/NRBC
      3. Orthochromatic Erythrocytes
  2. White Blood Cell
    1. inclusions
      1. Toxic granulation
      2. Vacuolated whites
      3. Dohle bodies
      4. Auer rods
      5. Nucleoli
    2. WBC abnormalities
      1. Hypersegmentation
      2. Hyposegmentation
      3. Basophilia
      4. Lacy chromatin
      5. Pelger-Huet
      6. Psuedo Pelger-Huet
      7. May Hegglin anomoly
      8. Chediak Higashi
    3.  Cell Types
      1. Atypical Lymphocytosis
      2. Plasma cells
      3. Reactive Lymphocytosis
      4. Smudge Cells
      5. Blasts
      6. Promyelocytes
      7. Myelocytes
      8. Metamyelocytes
      9. Bands
      10. Segmented Neutrophils/PMNS
      11. Monocytes
      12. Lymphocytes
      13. Eosinophills
      14. Basophills
  3. Platelets
    1. Platelet clumps
    2. large platelets
    3. fibrin strands
    4. satelitism
  4. Other Blood Sightings
    1. bacteria
    2. parasites
    3. yeast
    4. megakaryocytes
    5. lipemia
    6. hemolysis
    7. icteria
    8. cold agglutinins (high MCHC)
    9. clots