Schistosomiasis



Schistosomiasis


Michael W. Peterson, DO

Cary Chisholm, MD

Clay J. Cockerell, MD










Clinical photograph shows schistosomiasis of the labia majora presenting as swelling image that mimics warts. (Courtesy M. Ramos-e-Silva MD, PhD.)






Histopathology of schistosomiasis of the vulva demonstrates a single oval egg image amid a chronic inflammatory infiltrate. (Courtesy M. Ramos-e-Silva MD, PhD.)


TERMINOLOGY


Synonyms



  • Bilharziasis, cercarial dermatitis, swimmer’s itch (fresh water), clam-digger’s itch (salt water)


Definitions



  • Schistosomes are trematodes (flukes) or flatworms


  • 3 common species



    • Schistosoma haematobium: Infects urinary system


    • S. japonicum: Primarily infects liver


    • S. mansoni: Infects intestines


  • Other schistosomes can penetrate skin



    • Cannot survive in humans


    • Causes temporary cercarial dermatitis

Jul 8, 2016 | Posted by in PATHOLOGY & LABORATORY MEDICINE | Comments Off on Schistosomiasis
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