[Use of bladder biopsy in the study of urinary schistosomiasis].

It is common to find Schistosoma eggs in urine, faeces, and biopsies from rectal mucus membranes presently in use. It is less common to observe adults in routine bladder biopsies. The authors report such a case and discuss the importance of the bladder biopsy to estimate tissular inflammatory response which could reflect the host-parasite balance.