[Distribution of ABH antigens in tumours of the bladder. A retrospective immunofluorescence study (author's transl)].

ABH antigens are normally present on the surface of the healthy urinary epithelium. In a significant number of patients with tumour of the bladder the epithelium loses these antigens. The loss appears to be unrelated to the grade or stage of the tumour, but the prognosis seems to be brighter when the ABH antigens are retained.