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Clinical laboratory diagnostics of hemoblasosis. Leukemia definition. Leukemia – it is tumor arising from bloodforming cells and primary lesion bone marrow. Classification of leukemias. Acute leukemias myeloblastic lymphoblastic Chronical leukemias myeloid lynphoid.
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Leukemia definition • Leukemia – it is tumor arisingfrom bloodforming cells and primary lesionbone marrow
Classification of leukemias • Acute leukemias • myeloblastic • lymphoblastic • Chronicalleukemias • myeloid • lynphoid
Acutemyeloblasticleukemias • Undifferentiated • Myeloblasticwithoutmaturing • Myeloblasticwithmaturing • Promyelocytic • Myelomonoblastic • Monoblastic • Erythroblastic • Megacaryoblastic
Histochemicalsignsof differentiation ofacute leukemias • 1. Reaction for peroxidase • 2. Reaction for acidity phosphatase • 3. Reaction for uncpecificesterases • 4. Reaction for lipides • 5. Reaction for compoud carbohydrates
Reactionof myeloblastesandother of neutrophil cellsfor peroxidase
Reaction of myeloblastes and monoblastesforacidityphosphatase
Acute В-lymphoblastosis – bone marrowBigvacuolizedlymphoblastes
Acute lymphoblastosis – bone marrow.Totallymphoblasticmetaplasia
Chronicalmyeloidleukemias • Myelocytic • Monocytic • Eosinophilic • Erythroblastic • Megacaryocytic
Chronical lymphoidleukemias • В-lymphocytic • Т- lymphocytic (1,5 %) • Haircell
Chronicallymphocyticleukemia – bone marrow. Totallymphoidmetaplasia.
Chronicallymphocyticleukemia – bone marrow. Totallymphoidmetaplasia.
Mechanisms of cellular oncogenes activating • Point mutations • Chromosomal abnormalities • Virualtransduction • Insertionmutagenesis • Genesamplification
Clinicalmanifestation ofleukemia • Metaplastic anemia • Thrombocytopenia • Hemorrhagicsyndrome • Secondaryimmunedeficiency • Decreaseof resistance