MRI changes in cryptococcal meningoencephalitis exacerbated by antifungal treatment due to post-infectious
Kenji Ohira1, Yo Kawarada1, Ryoko Iwata1
1Department of Radiology, Shin-Kuki General Hospital, , 418-1 Kamihayami, Kuki City, Saitama Prefecture 346-8530.
Abstract:
Cryptococcal meningitis is one of the most common fungal meningitis in adults and causes disabling morbidity and mortality worldwide. The occurrence of postinfectious inflammatory response syndrome during cryptococcal meningitis treatment presents a diagnostic challenge. This time course seems paradoxical because patients show worsening symptoms and imaging findings. However, laboratory data improve with antifungal treatments. Herein, we present a case of an older woman diagnosed with cryptococcal meningitis who later developed postinfectious inflammatory response syndrome. Despite the initial antifungal treatment and improvements in cerebrospinal fluid analysis results, the patient's neurological condition deteriorated; imaging findings worsened. Magnetic resonance imaging at the time of postinfectious inflammatory response syndrome showed more prominent meningeal enhancement and brain edema, consistent with postinfectious inflammatory response syndrome, combined with negative repeat cerebrospinal fluid cultures for cryptococcal species. This case highlights the importance of considering postinfectious inflammatory response syndrome when patients with cryptococcal meningitis show clinical worsening during treatment. Prompt corticosteroid therapy significantly improves patient outcomes. Radiologists and clinicians should be aware of postinfectious inflammatory response syndrome to provide appropriate therapeutic options and improve prognosis in patients with cryptococcal meningitis.
Insights
Post-infectious inflammatory response syndrome can mimic treatment failure in cryptococcal meningitis. Early recognition and corticosteroid therapy are crucial for improving patient outcomes in this challenging neurological condition.
Area of Science:
- Infectious Diseases
- Neurology
- Immunology
Background:
- Cryptococcal meningitis is a significant cause of mortality and morbidity worldwide.
- It is a common fungal meningitis in adults, presenting diagnostic challenges.
- Post-infectious inflammatory response syndrome (PIIRS) can complicate treatment, leading to paradoxical worsening of symptoms.
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