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Hematology Laboratory 1 2/4/14 Examination of the Peripheral Smear Intro to Bone Marrow Morphology

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Neutrophil

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Eosinophil

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Lymphocyte

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Band (young neutrophil)

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Monocyte

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Neutrophil Basophil

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Eosinophil

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Large granular lymphocyte (LGL)

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Monocyte

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(bone marrow aspirate)

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Megakaryocyte (bone marrow aspirate)

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(bone marrow aspirate)

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Immature myeloid (young myelocyte) (bone marrow aspirate)

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(bone marrow aspirate)

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Plasma Cell

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Reactive Lymphocyte (sometimes called atypical lymph)

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(bone marrow aspirate)

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Immature Myeloid (metamyelocyte) (bone marrow aspirate)

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(bone marrow aspirate)

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Immature erythroids (proerythroblast and a more mature form) (bone marrow aspirate)

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(bone marrow aspirate)

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Immature myeloid (myelocyte) (bone marrow aspirate)

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(peripheral blood smear an abnormal finding)

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Nucleated RBC (late erythroid) (peripheral blood smear an abnormal finding)

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(bone marrow aspirate)

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Immature erythroids (later stages) (bone marrow aspirate)

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Can you identify these 4 intact marrow cells?

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The cell marked X has been artifactually crushed and is not identifiable Band Immature Myeloid (myelocyte) Immature Myeloid (metamyelocyte) Very immature Myeloid (myeloblast) X

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How many cells can you identify in this bone marrow aspirate?

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L = lymphocyte E = immature erythroid IM = immature myeloid PC = plasma cell (these are not the most obvious and could also be called lymphoplasmacytoid lymphocytes) PLT = platelet ? = this is a stripped or naked nucleus; it is hard to know what kind of cell it was and is ignored in the marrow differential L L PMN PC E E E E E E IM PC PLT IM ?