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[Marble disease in a young infant].

Z Z Gromova, V T Davydov

    Arkhiv Patologii
    |January 1, 1989
    PubMed
    Summary

    Marble bone disease (osteopetrosis) in an infant presented with pathological bone formation and extramedullary hemopoiesis. Genetic assessment revealed a sporadic inheritance pattern, highlighting rare genetic bone disorders.

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    Area of Science:

    • Genetics
    • Pediatrics
    • Pathology

    Background:

    • Marble bone disease, also known as osteopetrosis, is a rare genetic disorder characterized by impaired osteoclast function, leading to increased bone density.
    • This condition typically presents in infancy or childhood with a range of symptoms including bone fractures, visual impairment, and neurological deficits.

    Observation:

    • A 7-month-old child diagnosed with marble bone disease is presented in this case study.
    • Morphological examination revealed pathological bone formation, with bone marrow spaces in the pelvic bones, vertebrae, and long bones being replaced.
    • Extramedullary haemopoiesis was observed in the liver, lymph nodes, and skull bones.

    Findings:

    • Genetic assessment indicated a sporadic type of inheritance, suggesting a new mutation rather than an inherited form.
    • The pathological bone remodeling and extramedullary hematopoiesis are characteristic features of severe osteopetrosis.
    • Detailed morphological findings underscore the widespread nature of the disease affecting multiple skeletal and extraskeletal sites.

    Implications:

    • This case highlights the importance of early diagnosis and genetic assessment in managing marble bone disease.
    • Understanding the inheritance patterns, even sporadic ones, is crucial for genetic counseling and future research into osteopetrosis.
    • The findings contribute to the understanding of the pathophysiology of marble bone disease and its diverse clinical manifestations in pediatric patients.

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