We present a case of refractory Cryptococcus neoformans meningoencephalitis in an immunocompetent woman. Her clinical symptoms did not improve with 6 months of antifungal therapy, and MRI abnormalities, indicating severe meningeal and cerebral inflammation, persisted despite a decreasing cryptococcal antigen titer. The patient continued to deteriorate despite antifungal therapy, and her condition clearly improved following treatment with adjunctive corticosteroid. We postulate that the paradoxical antifungal therapy-related clinical deterioration was due to an immune response to cryptococcal organisms, which responded to corticosteroids. These observations provide rationale for a further evaluation of corticosteroids in the management of select cases of C. neoformans central nervous system infection.
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http://dx.doi.org/10.1159/000440948 | DOI Listing |
Front Immunol
December 2024
Department of Neurology Medicine, The Second Hospital of Shandong University, Cheeloo College of Medicine of Shandong University, Shandong University, Jinan, China.
We report on a previously non-HIV-diagnosed, 47-year-old male diagnosed with diabetes mellitus (DM) and cryptococcal meningoencephalitis, who was referred to our institution for antifungal treatment. During the course of treatment, due to the development of refractory intracranial hypertension, Ommaya reservoirs were employed for cranial pressure reduction. The patient gradually recovered during subsequent antifungal therapy; however, symptoms worsened in the third month of treatment, leading to consideration of post-infectious inflammatory response syndrome (PIIRS) on examination.
View Article and Find Full Text PDFJ Clin Immunol
November 2023
Laboratory of Clinical Immunology and Microbiology (LCIM), Division of Intramural Research (DIR), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bldg 10, Rm 11C208, Bethesda, MD, 20892, USA.
Purpose: Non-HIV cryptococcal meningoencephalitis (CM) in previously healthy individuals is often complicated by a post-infectious inflammatory response syndrome (c-PIIRS) characterized by neurologic deterioration after appropriate antifungal therapy with sterilization of CSF fungal cultures. c-PIIRS results from an excessive inflammatory response to fungal antigens released during fungal lysis, mediated by IFN-γ, IL-6, and activated T-helper cells, leading to immune-mediated host damage that responds to pulse-corticosteroid taper therapy (PCT). Typically, oral steroids may take up to a year to taper, and occasionally, patients will be refractory to steroid therapy or may demonstrate high-risk lesions such as those involving intracranial arteries.
View Article and Find Full Text PDFIntern Med
May 2024
Department of Neurology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Japan.
We retrospectively reviewed the medical histories, examination results, treatments, and prognoses of nine patients with cryptococcal meningitis who were diagnosed and treated at Hokkaido University Hospital and its affiliated hospitals over the past 10 years. Cryptococcal meningitis can develop even in immunocompetent hosts, and its prognosis is poor owing to diagnostic difficulties and delayed treatment. Although liposomal amphotericin B and oral 5-fluorocytosine are standard therapies, voriconazole or intraventricular administration of amphotericin B may also be considered treatment options for refractory patients.
View Article and Find Full Text PDFJ Fungi (Basel)
July 2023
Division of Infectious Diseases and Geographic Medicine, Stanford University, Stanford, CA 94304, USA.
Anticytokine autoantibodies (ACAAs) can cause adult onset immunodeficiencies which mimic primary immunodeficiencies and can present as refractory and severe fungal infections. This paper provides an overview of the role of innate immunity, including key cytokines, in fungal infections and then describes four clinical scenarios where ACAAs are associated with severe presentations of a fungal infection: (1) infection and anti-interferon-γ, (2) histoplasmosis and anti-interferon-γ, (3) infection and anti-GM-CSF, and (4) mucocutaneous candidiasis and anti-IL-17A/F (IL-22). Testing for ACAAs and potential therapeutic options are discussed.
View Article and Find Full Text PDFJ Oncol Pharm Pract
June 2024
Pharmacy Department, South Texas Veterans Health Care System, San Antonio, TX, USA.
Purpose: Ibrutinib is a tyrosine kinase inhibitor that is increasingly prescribed in chronic lymphocytic leukemia (CLL). Invasive fungal infections (IFIs) have been reported early after ibrutinib initiation. Timing of IFIs is within 6 months and commonly reported fungal infections include , and .
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