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Pulmonary cryptococcosis.

J M McDonnell, G M Hutchins

    Human Pathology
    |February 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

    Pulmonary cryptococcosis, often seen in immunocompromised patients, presents with varied pathological patterns. This fungal infection significantly contributed to mortality in many cases, highlighting its clinical importance.

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    Area of Science:

    • Medical Mycology
    • Pulmonary Pathology
    • Infectious Diseases

    Background:

    • Pulmonary cryptococcosis is a significant opportunistic infection, particularly in immunocompromised individuals.
    • Cryptococcus species can cause severe lung disease, with varied clinical and pathological presentations.

    Purpose of the Study:

    • To review autopsy cases of pulmonary cryptococcosis at The Johns Hopkins Hospital.
    • To characterize the pathological patterns, clinical diagnosis, and mortality associated with pulmonary cryptococcosis.

    Main Methods:

    • Retrospective review of 36 autopsy cases of pulmonary cryptococcosis.
    • Analysis of patient demographics, underlying conditions, treatment, and cause of death.
    • Histopathological examination to identify morphologic patterns of fungal distribution and host response.

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    Main Results:

    • Pulmonary cryptococcosis was a major factor in death for 69% of patients, often linked to systemic or central nervous system involvement.
    • Four distinct morphologic patterns were observed: peripheral granulomas, granulomatous pneumonia, diffuse interstitial/capillary involvement, and combined intra-alveolar/intravascular infection.
    • Clinical diagnosis occurred in 42% of cases, with significant variability in pathological reactions and clinical recognition.

    Conclusions:

    • Pulmonary cryptococcosis exhibits marked variability in its pathological presentation and host response.
    • The infection frequently contributes to mortality, underscoring the need for clinical awareness and timely diagnosis.
    • Understanding these diverse patterns is crucial for managing this opportunistic fungal infection.