HEMATOLOGY 2 LAB FINAL Flashcards
Baby/Kiddie Lymphocytes
10 to 20um, scant cytoplasm, condensed homogenous chromatin, may have small distinct nucleoli
Nucleated RBC correction Forumula
WBC count x 100/ 100+ NRBC
What is Pelger-Huet Anomaly?
Results in hypo segmentation of the granulocyte nucleus
2 forms: True (inherited)
Pseudo Pelger-huet (acquired)
Heterozygous Pelger-Huet Anomaly Forms
Bi-lobed (pince-nez), dumbbell, peanut shape. Round forms may be present
Homozygous Pelger-Huet Anomaly Forms
Rare form, round forms predominate
What conditions is Pseudo-Pelger Huet found in?
- Seen in myeloproliferative, and acute leukemias
- May also be seen in acute infections, drug treatments, burns
What is May-Hegglin anomaly?
Rare syndrome characterized by leukopenia, giant platelets and dohle bodies
What are Dohle Bodies composed of?
Dole bodies of May-Hegglin are composed of precipitated myosin heavy chain. True dole bodies seen in bacterial infections are composed of lamellar rows of rough endoplasmic reticulum.
Pelger-Huet Anomaly caused by?
Caused by lamin b receptor mutation
Chediak-Higashi symptoms
Susceptible to infections, partial albinism, all cells may have abnormal granules
Chediak-Higashi PBS
Presence of large pale blue/grey abnormal cytoplasmic granules in cells
Alder-Reilly Anomaly Granules Composition
partially degraded mucopolysaccharide from enzyme deficiency
Alder-Reilly PBS findings
deep purple granules in neutrophils
What are dole bodies caused by?
Maturation cut short, resulting in RNA material within the cell
What conditions are toxic granules found?
found in bacterial infections, drug poisoning and burns
Key Identifying Features of Toxic Granules
Prominent-blue grey granules in the cytoplasm, unevenly distributed
Key Identifying Features of Dohle Bodies
Pale blue, round or elongated bodies found in the cytoplasm