A Novel Homozygous HAX1 Mutation in a Child With Cyclic Neutropenia: A Case Report and Review.

Anshula Tayal, Jagdish P Meena, Ravneet Kaur, Pranay Tanwar, Neerja Gupta, Madhulika Kabra, Sushil K Kabra

Journal of pediatric hematology/oncology 2022 Mar 01

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Cyclic neutropenia is a rare genetic disorder causing the arrest of neutrophil function and is characterized by periodic neutropenia and recurrent infections. Patients with cyclic neutropenia with autosomal dominant, sporadic, and X-linked may have mutations in the ELANE gene, and autosomal recessive cases have homozygous/compound heterozygous variants in the HAX1 gene primarily. The authors describe a novel variant in the HAX1 gene, which was detected by next-generation sequencing in an 8-year-old male child who presented with recurrent infections and neutropenia. The patient extends the clinical variability associated with HAX1 variants and highlights the importance of genetic investigations in patients with suspected cyclic neutropenia. Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.

Citation

Anshula Tayal, Jagdish P Meena, Ravneet Kaur, Pranay Tanwar, Neerja Gupta, Madhulika Kabra, Sushil K Kabra. A Novel Homozygous HAX1 Mutation in a Child With Cyclic Neutropenia: A Case Report and Review. Journal of pediatric hematology/oncology. 2022 Mar 01;44(2):e420-e423