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Acromicric dysplasia.

P Maroteaux, R Stanescu, V Stanescu

    American Journal of Medical Genetics
    |July 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    Acromicric dysplasia is a newly identified bone disorder causing severe growth retardation and distinct hand/foot abnormalities. Histological analysis reveals chondrocyte disorganization and abnormal collagen in growth cartilage.

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    Area of Science:

    • Skeletal Dysplasias
    • Pediatric Orthopedics
    • Human Genetics

    Background:

    • Bone dysplasias represent a heterogeneous group of skeletal disorders.
    • Acromicric dysplasia is a rare condition characterized by specific skeletal abnormalities.
    • Previous literature lacks detailed characterization of this specific dysplasia.

    Purpose of the Study:

    • To describe a novel skeletal dysplasia, termed acromicric dysplasia.
    • To delineate the clinical and radiological features of acromicric dysplasia.
    • To investigate the underlying pathohistological changes in growth cartilage.

    Main Methods:

    • Clinical assessment of six patients with acromicric dysplasia.
    • Radiographic analysis of skeletal abnormalities, particularly in the hands.

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  • Histological, histochemical, and electron microscopic examination of growth cartilage.

    • Main Results:

    • Acromicric dysplasia presents with mild facial anomalies, severe growth retardation, and markedly shortened hands and feet.
    • Characteristic radiographic findings include short, stubby metacarpals and phalanges with specific notches.
    • Histological examination revealed disorganization of growth cartilage, abnormal collagen, and glycogen accumulation in chondrocytes.
    • No visceral storage signs were observed, differentiating it from geleophysic dwarfism.

    Conclusions:

    • Acromicric dysplasia is a distinct skeletal dysplasia with characteristic clinical and radiographic features.
    • Pathological changes in growth cartilage provide insights into the pathogenesis of shortened limbs.
    • This study contributes to the classification and understanding of rare bone dysplasias.