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Related Experiment Video

Updated: Jun 18, 2026

Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale
19:15

Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale

Published on: August 25, 2014

[Neonatal Pearson syndrome. two case studies].

H Collin-Ducasse1, A-M Maillotte, F Monpoux

  • 1Pôle de pédiatrie, hôpital de l'Archet II, 151, route de Saint-Antoine-de-Ginestière, 06202 Nice cedex 3, France. ducasse.h@gmail.com

Archives De Pediatrie : Organe Officiel De La Societe Francaise De Pediatrie
|November 17, 2009
PubMed
Summary

Pearson syndrome, a rare mitochondrial disorder, can manifest in newborns as severe macrocytic anemia. Early diagnosis via bone marrow and genetic analysis is crucial for prompt treatment.

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Area of Science:

  • Genetics
  • Hematology
  • Mitochondrial Diseases

Background:

  • Mitochondrial cytopathies are rare causes of neonatal anemia.
  • Pearson syndrome typically presents in infancy with refractory sideroblastic anemia and pancreatic dysfunction.

Observation:

  • Two cases of Pearson syndrome diagnosed in the early neonatal period presented with severe macrocytic aregenerative anemia.
  • Bone marrow aspiration showed sideroblastic anemia and vacuolization of erythroblastic precursors.
  • Genetic analysis confirmed mitochondrial DNA deletion.

Findings:

  • Pearson syndrome can occur in newborns, presenting with macrocytic aregenerative anemia.
  • Diagnosis requires bone marrow examination and mitochondrial DNA analysis.
  • Literature review identified five other neonatal cases with varied symptoms.

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Last Updated: Jun 18, 2026

Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale
19:15

Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale

Published on: August 25, 2014

Development of a Neonatal Rat Model for Brachial Plexus Birth Injury
09:42

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Published on: March 27, 2026

Implications:

  • Neonatal macrocytic aregenerative anemia warrants suspicion for Pearson syndrome.
  • Early diagnosis and genetic confirmation are essential for managing this rare mitochondrial disorder.
  • Increased awareness may improve outcomes for affected newborns.