Schistosomiasis

Summary

  • Snail-borne parasitic infection caused by a trematode (fluke) acquired through exposure of skin to contaminated freshwater.
  • Patients most commonly present with complications of chronic infection: genitourinary symptoms for Schistosoma haematobium and S intercalatum; intestinal and portal hypertension symptoms for S mansoni, S japonicum, S intercalatum, and S mekongi.
  • Diagnosis is made by microscopic visualisation of eggs in stools or urine; supplemental approaches include serological testing or biopsy of affected tissues (rectum or bladder) for detection of parasite eggs.
  • Praziquantel is the preferred treatment for all schistosome infections.
  • Serious complications of chronic infection include anaemia, portal hypertension, genital disease, renal failure, seizures, spinal cord compression, and neoplasms.
Last updated: Apr 25, 2013
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