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Myositis ossificans circumscripta: computed tomographic diagnosis.

M A Amendola, G M Glazer, F P Agha

    Radiology
    |December 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

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    Computed tomography (CT) effectively images myositis ossificans circumscripta, revealing characteristic "zone phenomenon" patterns during active stages. This imaging helps differentiate diagnoses and guides treatment planning for this bone growth condition.

    Area of Science:

    • Radiology
    • Orthopedic Imaging
    • Pathology

    Background:

    • Myositis ossificans circumscripta is a benign bone-forming tumor.
    • Accurate diagnosis is crucial for appropriate management.
    • Histological features include the "zone phenomenon".

    Observation:

    • Computed tomography (CT) was utilized in five patients diagnosed with myositis ossificans circumscripta.
    • Scans were analyzed during both active and mature stages of the condition.
    • Correlation with histological findings was assessed.

    Findings:

    • CT scans during the active phase showed patterns consistent with the histological "zone phenomenon" in most cases.
    • A distinct peripheral ossification ring was not consistently identified on CT.

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  • In one patient with chronic myositis ossificans, CT demonstrated complete ossification, indicating the mature phase.

    • Implications:

    • CT imaging aids in the differential diagnosis of myositis ossificans circumscripta, potentially avoiding unnecessary surgery.
    • CT provides valuable information for surgical planning in cases of mature myositis ossificans.
    • Radiographic findings on CT can reflect the stage of myositis ossificans circumscripta.