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Related Experiment Video

Updated: Jul 17, 2026

Procoagulant Platelet Characterization by Measuring Phosphatidylserine Exposure and Microvesicle Release from Human Purified Platelets

Procoagulant Platelet Characterization by Measuring Phosphatidylserine Exposure and Microvesicle Release from Human Purified Platelets

Published on: November 29, 2024

[Platelet satellitism].

Edwina Kasprzycka¹, Janusz Zak, Karol Ratomski

¹Z Zakładu Laboratoryjnej Diagnostyki Pediatrycznej Akademii Medycznej, Białymstoku.

Wiadomosci Lekarskie (Warsaw, Poland : 1960)

|January 11, 2007

Summary

Platelet satellitism, where platelets adhere to white blood cells, was observed in a pediatric patient with bronchopneumonia. This phenomenon, though rare, highlights the need for microscopic blood smear examination.

Area of Science:

Hematology
Clinical Pathology

Background:

Platelet satellitism is a rare hematological finding characterized by platelets adhering to leukocytes.
This phenomenon can be observed in peripheral blood smears, particularly in EDTA-anticoagulated samples.

Observation:

A 12-month-old patient hospitalized for bronchopneumonia presented with platelet satellitism in their peripheral blood smear.
Cytometric analysis revealed significant aggregation of platelets with granulocytes (88.7%), monocytes (5.0%), and lymphocytes (17.0%).

Findings:

The study observed a gradual decrease in platelet count coinciding with the presence of platelet satellitism.
Microscopic examination of blood smears remains crucial for accurate hematological assessment, even with advanced analyzers.

Implications:

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Platelet satellitism can affect platelet counts, necessitating careful interpretation of automated hematology results.
This case underscores the continued importance of manual blood smear review for diagnosing and understanding hematological disorders.