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[Osteopetrosis (report of 2 cases)]

A Mallet Arellano, L R Pinto Avila, M I Chávez Abrego

    Boletin Medico Del Hospital Infantil De Mexico
    |July 1, 1977
    PubMed
    Summary

    This study presents two osteopetrosis cases: a malignant form in an infant and a benign form in an adult. It highlights distinct clinical, radiological, and hematological features of this rare genetic bone disorder.

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    Area of Science:

    • Medical Genetics
    • Pediatric Endocrinology
    • Skeletal Dysplasias

    Background:

    • Osteopetrosis, a rare genetic disorder, is characterized by impaired osteoclast function leading to bone resorption defects.
    • It presents in diverse forms, ranging from severe infantile malignant osteopetrosis to milder adult-onset benign osteopetrosis.

    Observation:

    • A 4-month-old infant with malignant osteopetrosis exhibited ocular abnormalities, deafness, hepatosplenomegaly, petechiae, fractures, anemia, thrombocytopenia, and myelofibrosis.
    • A 26-year-old female with benign osteopetrosis presented with multiple lower limb fractures causing gait impairment.

    Findings:

    • Both cases demonstrated characteristic radiological findings confirming osteopetrosis.
    • Laboratory findings included elevated alkaline phosphatase in serum and granulocytes, anemia, and thrombocytopenia in the infant.

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  • The adult case's diagnosis was confirmed via characteristic radiological findings.

    • Implications:

    • Understanding the distinct presentations of malignant and benign osteopetrosis is crucial for timely diagnosis and management.
    • This case series emphasizes the importance of integrating clinical, radiological, and hematological data for comprehensive osteopetrosis evaluation.
    • Further research into osteopetrosis pathophysiology and treatment strategies is warranted to improve patient outcomes.