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Cysticercus racemosus in an eosinophilic phlegmon in the brain

Z Ali-Khan, R Siboo, E Meerovitch

    Transactions of the Royal Society of Tropical Medicine and Hygiene
    |January 1, 1981
    PubMed

    Insights

    A rare brain infection, Cysticercus racemosus, was identified in a Canadian patient with headaches and convulsions. Histological and immunofluorescent methods confirmed the parasitic larva, suggesting a possible Indian origin of the infection.

    Area of Science:

    • Neurology
    • Parasitology
    • Immunology

    Background:

    • Neurocysticercosis is a significant cause of neurological symptoms globally.
    • Cysticercus racemosus represents a less common but severe form of tapeworm larval infection in the brain.

    Observation:

    • A 30-year-old Canadian patient presented with headaches, convulsions, and peripheral eosinophilia.
    • Histological examination revealed a tumour-like brain mass containing Cysticercus racemosus larva.
    • The larva was surrounded by an eosinophilic phlegmon and inflammatory brain tissue.

    Findings:

    • Specific immunofluorescent techniques confirmed the presence of intracellular and interstitial immune complexes.
    • Degenerative changes in the larva were observed, particularly where eosinophils adhered.
    • Tissue eosinophilia played a role in the host's inflammatory response to the parasite.

    Implications:

    • This case highlights the importance of considering parasitic infections in neurological diagnoses, even in non-endemic regions.
    • Understanding the host-parasite interaction, including the role of eosinophils, is crucial for managing neurocysticercosis.
    • Early and accurate diagnosis through histological and immunofluorescence aids in appropriate treatment and management of brain parasitic infections.

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