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Related Experiment Videos

[May-Hegglin anomaly: further studies on thrombocyte dysfunction]

K Mayer1, O Schildknecht, A von Felten

  • 1Medizinische Klinik, Kantonsspital Münsterlingen.

Schweizerische Medizinische Wochenschrift
|June 28, 1997
PubMed
Summary

May-Hegglin anomaly is a rare inherited blood disorder affecting white cells and platelets. Despite potential bleeding issues, platelet function tests are typically normal, suggesting DDAVP may help manage bleeding symptoms.

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Area of Science:

  • Hematology
  • Genetics
  • Internal Medicine

Background:

  • May-Hegglin anomaly is a rare autosomal dominant inherited disorder.
  • Characterized by abnormal white blood cells and platelets, including basophilic inclusion bodies and thrombocytopenia with giant platelets.
  • May present with mild hemorrhagic diathesis.

Observation:

  • A previously asymptomatic patient from a known May-Hegglin anomaly family presented with life-threatening bleeding.
  • The patient exhibited a prolonged bleeding time consistent with thrombocytopenia.
  • Platelet aggregation studies using ADP, collagen, ristocetin, and arachidonic acid were normal.

Findings:

  • The study found no evidence of a congenital platelet function defect in this May-Hegglin anomaly patient.

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  • Bleeding time showed temporary improvement with DDAVP (desmopressin) administration.
  • Platelet transfusion is reserved for specific clinical situations.

    • Implications:

    • This case underscores the importance of differentiating platelet count from platelet function in managing bleeding risks associated with May-Hegglin anomaly.
    • Understanding platelet behavior in this anomaly guides therapeutic strategies, including the potential role of DDAVP.
    • Further research may clarify the precise mechanisms underlying bleeding in May-Hegglin anomaly despite normal platelet aggregation.