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Colovesical fistulas are the most common type of vesicointestinal fistula and the most prevalent of these are vesicosigmoid fistulas. In our environment, diverticulitis is the most common cause, accounting for approximately one half of all cases. The literature describes different methods for the diagnosis of colovesical fistula, with computed tomography and cystography being the most useful. We describe two cases of vesicosigmoid fistula secondary to diverticulitis diagnosed at our center using helical computed tomography and review the clinical and radiological findings for this entity.

We present the case of a vesicouterine fistula secondary to a caesarean section indicated due to the disproportion the pelvis and the head of the baby. This kind of fistula is due fundamentally to obstetric causes, especially to caesarean sections in developed countries and to prolonged labour in developing countries. The commonest clinical presentation is urinary incontinence in the form of continuous or intermittent urinary leaks. Surgical treatment is generally the therapy of choice, although, in the case of small fistulas, conservative treatment is feasible. The best form of prevention is correct indication of caesarean section and careful surgical technique.

Contribution of two new cases of vesicouterine fistula secondary to a cesarean incision. In one case, diagnosis was achieved through cystography and cystoscopy, while in the second case cystography, cystoscopy and stain testing (methylene blue) were used. In both cases management was through transperitoneal and transvesical fistulorrhaphy. The two cases showed favourable post-operative evolution with no relapse.