Ureteral triplicity is a rare abnormality of which there are less than a hundred cases reported up to date. The possible absence of clinical signs can explain why this malformation passes unnoticed specially when there are blind branches and dysplastic renal segments. The paper presents the case of a 43 year-old male, attending the clinic on a testicle tumour consultation, in which in spite of the previously mentioned circumstances a preoperative diagnosis of trifid ureter with ipsilateral ureterocele and renal dysplasia was reached owing to the use of C.A.T.
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