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Small-platelet thrombocytopenia in a family with autosomal recessive inheritance pattern

Carina Levin1, Lucia Zalman, Hannah Tamary

  • 1Pediatric Hematology Unit and Pediatric Department B, Emek Medical Center, Afula, Israel. levin_c@clalit.org.il

Pediatric Blood & Cancer
|May 8, 2013
PubMed

Insights

This study details a rare congenital genetic disorder causing severe thrombocytopenia (low platelet count) with neonatal onset in a consanguineous Arab family. The condition presents with small platelets and significant bleeding complications, distinct from known disorders.

Area of Science:

  • Medical Genetics
  • Hematology
  • Pediatrics

Background:

  • Thrombocytopenia disorders are a heterogeneous group of conditions characterized by low platelet counts.
  • Congenital thrombocytopenias often present in neonates with significant bleeding risks.
  • Genetic factors play a crucial role in the etiology of many inherited bleeding disorders.

Purpose of the Study:

  • To characterize the clinical and laboratory features of a novel inherited thrombocytopenia.
  • To investigate the inheritance pattern of this disorder within a consanguineous family.
  • To differentiate this condition from known inherited thrombocytopenias.

Main Methods:

  • Clinical case description of five affected individuals across two sibships.
  • Detailed laboratory evaluation of platelet size and count.
  • Pedigree analysis to determine the mode of inheritance.

Main Results:

  • Affected individuals exhibit small platelets and severe to moderate thrombocytopenia from birth.
  • Significant bleeding complications include massive hemoperitoneum and severe mucosal bleeding.
  • Autosomal recessive inheritance pattern observed in the family.

Conclusions:

  • A novel congenital genetic disorder causing thrombocytopenia is described.
  • The condition is characterized by neonatal onset, small platelets, and severe bleeding.
  • This disorder does not align with the clinical spectrum of previously identified thrombocytopenias.

Keywords:
autosomal recessivebleedingfamilial thrombocytopeniasmall-platelet

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