Aspergillosis laboratory findings

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Haytham Allaham, M.D. [2]

Overview

Laboratory findings consistent with the diagnosis of aspergillosis include positive aspergillus antibody test, positive galactomannan test, and elevated concentration of IgE immunoglobulin.

Laboratory Findings

Culture and Stain

In addition to the symptoms, an x-ray or computerized tomography (CT) scan of the infected area provides clues for making the diagnosis. Whenever possible, a doctor sends a sample of infected material to a laboratory to confirm identification of the fungus.

The following lab tests may be done

• Aspergillus antibody test
• Positive galactomannan test (a molecule from the fungus that is sometimes found in the blood)
• Immunoglobulin E (IgE) blood level
• Sputum stain and culture for Aspergillus
• Tissue biopsy

References

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