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Case Report

Med Arch. 2018; 72(2): 148-150


A Novel Mitochondrial DNA Deletion in Patient with Pearson Syndrome

Rame Khasawneh, Hala Alsokhni, Bayan Alzghoul, Asim Momani, Nazih Abualsheikh, Nazmi Kamal, Mousa Qatawneh, Nabeeha Abbasi.




Abstract

Introduction: Arteriovenous Pearson syndrome is a very rare multisystemic mitochondrial disease characterized by sideroblastic anemia and exocrine pancreatic insufficiency. It is usually fatal in infancy. Case report: We reported a four-month-old infant presented with fever and pancytopenia. Bone marrow examination showed hypoplastic changes and sideroblastic features. Molecular Study showed a novel hetroplasmic mitochondrial deletions (m. 10760 -m. 15889+) in multiple genes (ND4,ND5,ND6, CYTB). In our patient the pathogenic mutation was 5.1 kb heteroplasmic deletions in multiple genes that are important and crucial for intact oxidative phosphorylation pathway and ATP production in the mitochondrial DNA. This mutation was not reported in literature including the mitomap.org website (which was last edited on Nov 30, 2017 and accessed on Jan 13, 2018).

Key words: mitochondrial deletions, mitochondrial disease, Pearson syndrome, exocrine pancreatic insufficiency.






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