A rare case of bladder diverticulosis.

The incidence of bladder diverticula in the pediatric population is unknown as they are often asymptomatic. A minority of cases are a manifestation of a genetic syndrome. Primary diverticula have different features compared to secondary diverticula, which are generally caused by an obstructive or iatrogenic mechanism. This clinical case deals with a rare neonatal finding of bladder diverticulosis with alteration of the bladder, first detected with ultrasound. Voiding cystography and magnetic resonance allowed us to delineate their heterogeneity in size, their distribution in the bladder and to rule out other malformations of the urinary tract. The features of these diverticula focused the diagnosis of cutis laxa syndrome, a rare disease where bladder diverticulosis is only one sign of a more complex disease.