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Related Experiment Videos

Ascaris pneumonitis: case presentation.

W Ramsey

    Iowa Medicine : Journal of the Iowa Medical Society
    |October 1, 1989
    PubMed
    Summary
    This summary is machine-generated.

    Ascaris pneumonitis in an elderly woman presented as a respiratory infection, complicating diagnosis with suspected neoplasia. The rare diagnosis was confirmed by finding an adult worm during sigmoidoscopy.

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    Area of Science:

    • Infectious Diseases
    • Pulmonology
    • Parasitology

    Background:

    • Ascaris pneumonitis is a lung infection caused by the roundworm Ascaris.
    • Diagnosis is typically confirmed by identifying eggs in stool or, rarely, an adult worm.

    Observation:

    • A 74-year-old female presented with respiratory infection symptoms.
    • Initial chest X-ray suggested neoplasia, complicating the diagnostic process.
    • Further investigations revealed unrelated thyroid and breast lesions.

    Findings:

    • The patient did not exhibit typical eosinophilia, a common but transient indicator of parasitic infection.
    • An adult Ascaris worm was identified during sigmoidoscopy, leading to the diagnosis.
    • No clear source of infection was identified despite good hygiene and urban residence.

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    Implications:

    • This case highlights the diagnostic challenges of Ascaris pneumonitis, especially in the elderly.
    • It underscores the importance of considering parasitic infections even with atypical presentations.
    • The findings emphasize the utility of sigmoidoscopy in diagnosing rare cases of ascariasis.