A patient with schistosomiasis for several years may develop cutaneous lesions at sites where female worms have deposited eggs.
Common sites include:
(1) periumbilical region (associated with the paraumbilical veins)
(2) skin of thorax or abdomen
(3) anogenital region
Appearance:
(1) papules, which may be in groups and which are often pruritic
(2) plaques or nodules
(3) soft, warty vegetations
(4) polypoid growths
(5) ulcerations
Histologic features:
(1) granulomatous inflammation with eosinophils
(2) eggs may be present but these can be hard to find
(3) pseudoepitheliomatous hyperplasia of the overlying epidermis
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Specialty: Infectious Diseases, Gastroenterology, Urology
