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Malignant infantile osteopetrosis.

Kalenahalli Jagadish Kumar1, Kasi Bandaru, Sathya Narayana Prashanth

  • 1Department of Pediatrics, JSS Medical College, JSS University, Mysore, Karnataka, India.

Indian Journal of Human Genetics
|August 1, 2013
PubMed
Summary

Malignant infantile osteopetrosis is a rare genetic disorder causing bone density issues. This case highlights a severe presentation in an infant with bronchopneumonia and anemia.

Keywords:
Fatalgenetichepatosplenomegalyinfancymalignant infantile osteopetrosis

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Area of Science:

  • Genetics
  • Pediatrics
  • Hematology

Background:

  • Osteopetrosis is a rare congenital genetic disorder affecting bone resorption by osteoclasts.
  • It presents in three forms: infantile malignant autosomal recessive (AR), intermediate (AR), and autosomal dominant (AD).
  • The infantile malignant AR form has a high fatality rate if untreated, occurring in 1/200,000 births.

Observation:

  • This report details a rare case of malignant infantile osteopetrosis.
  • The patient, diagnosed at 2 months and 15 days, presented with bronchopneumonia, anemia, and melaena.
  • Common symptoms include hematologic abnormalities, bone marrow failure, hepatosplenomegaly, macrocephaly, and fractures.

Findings:

  • The case underscores the severe presentation of infantile osteopetrosis.
  • Early diagnosis and management are critical due to the condition's severity and potential for fatal outcomes.
  • The patient's symptoms highlight the complex interplay of genetic bone disease and secondary complications.

Implications:

  • This case report emphasizes the importance of recognizing rare genetic bone disorders in infants.
  • It highlights the need for prompt diagnosis and multidisciplinary management for osteopetrosis.
  • Further research into osteopetrosis pathogenesis and treatment is crucial for improving patient outcomes.