Neuroschistosomiasis: clinical symptoms and pathogenesis

Area of Science:

• Neurology
• Infectious Diseases
• Parasitology

Background:

• Neuroschistosomiasis is a severe neurological disorder caused by schistosome parasites affecting the central nervous system (CNS).
• It is increasingly reported in endemic areas and among travelers, yet remains underdiagnosed.
• CNS involvement can manifest in the brain or spinal cord at any stage of schistosomal infection.

Purpose of the Study:

• To highlight the clinical significance and diagnostic challenges of neuroschistosomiasis.
• To differentiate the neurological manifestations based on the causative Schistosoma species.
• To emphasize the importance of early detection and management for patient outcomes.

Main Methods:

• Review of clinical presentations and epidemiological data related to neuroschistosomiasis.
• Analysis of species-specific tropism for the CNS (brain vs. spinal cord).
• Correlation of clinical forms with disease pathogenesis and prognosis.

Main Results:

• Schistosoma mansoni and S. haematobium typically cause myelopathy (spinal cord disease).
• Schistosoma japonicum is more commonly associated with encephalic disease (brain disease).
• Pathogenesis, clinical presentation, and outcomes vary significantly based on the phase and form of schistosomiasis.

Conclusions:

• Neuroschistosomiasis is a critical neurological complication of schistosomiasis with variable presentations.
• Accurate species identification and understanding of disease phases are vital for diagnosis and treatment.
• Timely intervention is essential for managing this severe neurological disorder.