Platelet Satellitosis

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Blood/Blood Cells and Cellular Components ›› Platelets ›› Abnormal

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›Microscopic Features:

Small platelets or platelet aggregates surrounding the cell membrane of a neutrophil or monocyte

›Normal % blood-PB, marrow-BM, lymphoid tissue-LN:

PB: Rare to None
BM: Rare to None
LN: None

›May Resemble:

Stain artifact
Monocyte
Neutrophil

›Differential Diagnoses:

EDTA-induced
Autoimmune patients
Pregnancy

›Classic Immunophenotype:

CD41+
CD61+

›Cartoon Image:

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for direct comparison

›Misc:

As a result of the platelets attaching to the surgface of neutrophils or monocytes, the platelet count measured by an automated instrument during a CBC could become falsely decreased (pseudo-thrombocytopenia)