[A form of bladder allergy: eosynophilic cystitis]

Eosynophile cystitis is the serious result of an antigen-antibody reaction in the bladder. The rarity with which it occurs, its ambiguous clinical picture and its solely anatomo-pathological diagnosis combine to make it atypical and hence the scanty numbers of papers published on the subject. The author presents a case of his own, following a bibliographic review in which special emphasis is placed on the etiopathogeny of the process.