[Eosinophilic cystitis]. / Cistitis eosinofílica.

We report two cases of eosinophilic cystitis that had been diagnosed anatomo-pathologically after TUR. These patients had a previous history of low grade and stage superficial bladder tumor that had been treated by intravesical interferon after surgery. The literature is reviewed highlighting the etiopathogenic aspects, the possible relationship with immune allergic factors, clinical aspects, diagnosis and treatment.