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Article Synopsis
  • Ghosal hematodiaphyseal dysplasia (GHDD) is a rare genetic disorder affecting bone development, characterized by issues like diaphyseal dysplasia of long bones and anemia that responds to steroids, caused by mutations in the TBXAS1 gene.
  • Two cases are presented: a 3-year-old boy with pallor and ecchymosis diagnosed with GHDD due to bicytopenia and bone marrow fibrosis, and a 20-month-old girl with symptoms including bloody stools and anemia, confirmed through genetic testing.
  • Early diagnosis and treatment with steroids can significantly improve patient outcomes, reducing transfusion needs and preventing further bone damage, which contributes to better growth
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Ghosal hematodiaphyseal dysplasia (GHDD) is a rare autosomal recessive disorder characterized by increased bone density involving diaphyses of long bones and defective hematopoiesis. It is due to biallelic variants in the TBXAS1 (OMIM*274180) gene, which encodes for thromboxane synthase. We present a rare case of a middle-aged woman who presented with chronic anemia and bone pain.

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Low-dose non-steroidal anti-inflammatory drugs: a promising approach for the treatment of symptomatic bone marrow failure in Ghosal hematodiaphyseal dysplasia.

Haematologica

August 2024

Department of Hematology and Bone Marrow Transplantation, Saint-Louis Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France; French Reference Center for Aplastic Anemia, Saint-Louis Hospital, Assistance Publique-Hôpitaux de Paris, Paris.

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The study highlights genomic findings in a series of 13 IRIDA phenotype cases. All had microcytic hypochromic anemia with suboptimal oral iron response to two different oral iron preparations at 4-6 weeks and low-normal ferritin, low transferrin saturation, and inappropriately high hepcidin. Targeted NGS on a 26-gene iron panel revealed pathogenic TMPRSS6 variants in 5/13 (38 %) cases.

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