Online Journal of Health & Allied Sciences (Jan 2024)

A Rare α-chain Variant Hb Fontainebleau in an Adult Male – Lessons Learnt

  • Shivali Sehgal,
  • Swati Sharma,
  • Shailaja Shukla,
  • Sunita Sharma

Journal volume & issue
Vol. 22, no. 4

Abstract

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Haemoglobinopathies constitute a large proportion of hemolytic anemias constituting around 74% of hereditary hemolytic anemias. Till date, about 200 alpha chain variants have been identified, one of which is Hb Fontainebleau. It is a rare alpha chain variant characterized by an Alanine → Proline substitution at codon 21 with a GCT>CCT change at the molecular level. It is incidentally detected on HPLC as an unknown peak. We present a case of Hb Fontainebleau in a 53 year old male patient who presented with symptoms related to hemolytic anemia and an unknown peak on the HPLC chromatogram.

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