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August 24, 2025International Journal of Laboratory Hematology

Compound Heterozygous Hb Milledgeville With −α4.2 Thalassemia—A Rare and First Reported Cause of Primary Erythrocytosis in an Indian Family

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Authors

RCRicha ChauhanMahavir Cancer Institute and Research CentreVPVandana PuriLady Hardinge Medical CollegeSAShreyam AcharyaAll India Institute of Medical Sciences

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Implication

Reports a rare hemoglobinopathy causing erythrocytosis in a 42-year-old male, indicating genetic implications for family screening.

Key Points

  • Erythrocytosis was managed through multiple phlebotomies due to high-oxygen affinity hemoglobinopathy, revealing new genetic insights.
  • Patient exhibits a compound heterozygous state for Hb Milledgeville and −α4.2 thalassemia, marking a unique case.
  • Investigation utilized NGS, GAP-PCR, and MLPA to confirm the genetic variants across family members, emphasizing hereditary aspects.
  • This case highlights the need for genetic testing in families with history of hemoglobinopathies and erythrocytosis.

Cite This Study

Chauhan et al. (2025) studied this question.

synapsesocial.com/papers/68af5f07ad7bf08b1eae17aehttps://doi.org/10.1111/ijlh.14544
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Genetic basis of unexplained erythrocytosis in Indian patients2019 · 21 citations
  2. 2Heterogeneity of Hemoglobin H Disease in Childhood2011 · 177 citations
  3. 3THROMBOTIC EVENTS IN COMPOUND HETEROZYGOTES FOR A HIGH AFFINITY HEMOGLOBIN VARIANT: Hb MILLEDGEVILLE [α44(CE2)Pro→Leu (α2)] AND FACTOR V LEIDEN2002 · 12 citations
  4. 4Molecular Heterogeneity of Hb H Disease in India2022 · 4 citations
  5. 5Wide spectrum of novel and rare hemoglobin variants in the multi‐ethnic Indian population: A review2024 · 9 citations