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Lithopedion: stone baby

C J Fagan, M H Schreiber, E G Amparo

    Archives of Surgery (Chicago, Ill. : 1960)
    |June 1, 1980
    PubMed
    Summary
    This summary is machine-generated.

    Lithopedion, a rare condition involving a calcified fetus, is difficult to diagnose clinically. Plain abdominal X-rays are the definitive diagnostic tool, readily identifying the calcified fetus and membranes.

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    Area of Science:

    • Reproductive Medicine
    • Medical Imaging
    • Pathology

    Background:

    • Lithopedion is an extremely rare complication of pregnancy where a fetus, after dying in utero, becomes calcified over time.
    • Diagnosis is often incidental and occurs years after the initial pregnancy, presenting diagnostic challenges due to the absence of specific symptoms.

    Observation:

    • Two cases of lithopedion were reviewed, with detailed illustration of computerized tomographic (CT) findings in one case.
    • Clinical presentation lacks pathognomonic signs or symptoms, making early diagnosis difficult.

    Findings:

    • Plain abdominal radiography is the most reliable method for diagnosing lithopedion.
    • The presence of a calcified fetus and its investing membranes on plain film is an absolute diagnostic sign.

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  • While other imaging modalities like CT, ultrasound, and barium studies can visualize the condition, they are rarely necessary or add significant diagnostic value beyond plain radiography.
  • Implications:

    • Recognition of the classic radiographic signs is crucial for accurate and timely diagnosis of lithopedion.
    • Understanding the diagnostic utility of various imaging techniques can prevent unnecessary investigations in suspected lithopedion cases.
    • This highlights the enduring value of conventional radiography in diagnosing rare pathological conditions.