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.)



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


  • 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

Full access? Get Clinical Tree

Get Clinical Tree app for offline access