We report a case of eosinophilic cystitis the onset of which was characterized by
acute peritonitis secondary to a spontaneous intraperitoneal rupture of the
vesical cupula. The patient was treated with urgent partial cystectomy in another
hospital and 3 months later he underwent endoscopic diathermic coagulation of a
residual inflammatory lesion at our institution. After an 18 month endoscopic
follow-up no further signs of recurrent eosinophilic cystitis have been pointed
out. The non-traumatic bladder perforation and the absence of any other bladder
pathology might indicate that eosinophilic cystitis can be responsible for
complete bladder ruptur
