Taenia solium

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Key Points

  • Taenia solium
    • Characteristics
      • Includes T. solium (pork tapeworm)
      • Type of flat cestode (tapeworm) parasite
    • Transmission and Presentation
      • Ingestion of larvae in undercooked pork (cysts in muscle tissue)
        • Causes intestinal tapeworm
          • Humans are definitive host
          • Most carriers are asymptomatic
          • May have nausea, anorexia, or epigastric pain (MB)
          • Peripheral eosinophilia may be seen (MB)
      • Ingestion of eggs in food (contaminated with human feces)
        • Causes cysticercosis
          • Human are accidental host (instead of pig)
          • Neurocysticercosis
            • Cystic CNS lesions (small ring-enhancing lesions)
            • Seizures, headache, altered mental status
          • Cystic lesions involving muscles or subcutaneous tissues
    • Diagnosis
      • Stool Microscopy (O&P)
        • May be seen by patient (noodle-like or tape-like sections)
      • Brain imaging for neurocysticercosis
    • Treatment
      • Praziquantel
      • Add albendazole for neurocysticercosis