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Disseminated Pneumocystis carinii infection in a patient with acquired immunodeficiency syndrome

M M Grimes, J D LaPook, M H Bar

    Human Pathology
    |March 1, 1987
    PubMed

    Insights

    Pneumocystis pneumonia rarely spreads beyond the lungs. In an AIDS patient, extrapulmonary Pneumocystis carinii infection was found in the duodenum and esophagus, later confirmed at autopsy in multiple organs.

    Area of Science:

    • Medical Mycology
    • Infectious Diseases
    • Immunocompromised Host Research

    Background:

    • Pneumocystis pneumonia (PCP) is a common opportunistic infection in individuals with compromised immune systems.
    • Extrapulmonary dissemination of Pneumocystis carinii is an uncommon but serious complication.

    Observation:

    • A patient diagnosed with acquired immunodeficiency syndrome (AIDS) presented with PCP.
    • Extrapulmonary P. carinii infection was identified in endoscopic biopsy samples from the duodenum and esophagus.

    Findings:

    • Histopathological examination of duodenal and esophageal biopsies confirmed extrapulmonary Pneumocystis carinii.
    • Autopsy revealed widespread dissemination of P. carinii to multiple organs, indicating systemic infection.

    Implications:

    • This case highlights the potential for P. carinii to disseminate beyond the respiratory tract in severely immunocompromised individuals.
    • Early diagnosis of extrapulmonary PCP may be crucial for managing advanced cases in AIDS patients.
    • Further research into risk factors and diagnostic markers for disseminated PCP is warranted.

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