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[A case of cryptococcal ventriculitis with slowly progressive gait disturbance and memory impairment as initial
Nobuo Yamashiro1, Takamura Nagasaka, Ryusuke Takaki
1Department of Neurology, Faculty of Medicine, University of Yamanashi.
Abstract:
A 54-year-old man was admitted due to progressive gait disturbance and cognitive impairment. On MRI, a hyperintense region was observed in the periventricular white matter on FLAIR imaging, with Gd-enhancement in the choroid plexus and periventricular wall. Cerebrospinal fluid (CSF) examination showed marked abnormalities including a high white blood cell count (WBC, 360 cells/mm(3). 83% lymphocytes), an elevated protein level (1,416 mg/dl), a low glucose level (12 mg/dl), and elevated cryptococcal antigen with positive Indian ink staining. Cryptococcal ventriculitis was diagnosed. The patient was initially treated with liposomal amphotericin B, fluconazole, voriconazole, and flucytosine for 38 weeks, followed by administration of itraconazole and fluconazole with some improvement. The brain MRI after one month showed septum formation in the posterior horn, which was suggestive of ventriculitis. Although ventriculitis is rare, we should pay attention to the presence of ventriculitis due to cryptococcal infection in the central nervous system.
Insights
Cryptococcal ventriculitis, a rare central nervous system infection, can cause gait disturbance and cognitive impairment. Prompt diagnosis and extensive treatment are crucial for managing this serious fungal infection.
Area of Science:
- Neurology
- Infectious Diseases
- Medical Imaging
Background:
- Cryptococcal infections primarily affect immunocompromised individuals but can occur in the general population.
- Central nervous system (CNS) involvement, particularly ventriculitis, is a rare but severe complication of cryptococcosis.
- Progressive gait disturbance and cognitive impairment are potential neurological manifestations.
Observation:
- A 54-year-old man presented with gait disturbance and cognitive impairment.
- Brain MRI revealed periventricular white matter hyperintensities and leptomeningeal enhancement.
- Cerebrospinal fluid analysis demonstrated lymphocytic pleocytosis, elevated protein, low glucose, and positive cryptococcal antigen.
Findings:
- The patient was diagnosed with cryptococcal ventriculitis, a rare manifestation of CNS cryptococcosis.
- Treatment involved a prolonged course of combination antifungal therapy, including liposomal amphotericin B, fluconazole, voriconazole, and flucytosine.
- Follow-up MRI showed septum formation, indicating residual ventriculitis despite treatment.
Implications:
- This case highlights the importance of considering cryptococcal infection in patients with unexplained neurological symptoms and CSF abnormalities.
- Ventriculitis, though uncommon, is a serious complication of cryptococcosis requiring aggressive and prolonged antifungal management.
- Early recognition and comprehensive treatment are essential for improving outcomes in CNS cryptococcosis.
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