Sánchez Villalobos M, Salido Fiérrez E, Martínez Nieto J, García Garay MC, Beltrán Videla A, Pérez Oliva AB, Blanquer Blanquer M, Moraleda Jiménez JM. Case Report: α-Spectrin Mutation Associated with αLELY Polymorphism Responsible for Hereditary Pyropoikilocytosis.
Hematol Rep 2022;
14:300-304. [PMID:
36278520 PMCID:
PMC9589974 DOI:
10.3390/hematolrep14040043]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/03/2022] [Accepted: 09/15/2022] [Indexed: 11/06/2022] Open
Abstract
Hereditary pyropoikilocytosis (HPP) is characterised by severe hemolytic anemia due to membrane instability. We report the case of a 13-day-old boy with neonatal jaundice and severe hemolytic anemia. A peripheral smear examination showed severe anisopoikylocytosis. DNA sequencing revealed compound double heterozygous for mutant α-spectrin SPTA1 (Arg28His) and homozygous αLELY polymorphism (low expression α-spectrin allele), compatible with diagnosis of HPP.The patient required a blood transfusion initially, but spontaneously improved after two years. Our case illustrates that, despite the presence of the allele αLELY in homozygous, the clinical phenotype is similar to cases with a mutation in SPTA1 associated with αLELY in trans.
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