[Persistent multiple urachal complex. Echographic-surgical correlations].
Urachus is a tubular structure lined between foetal bladder and the umbilicus and is susceptible to complete or partial involution after birth. Persistence of the urachus results in a wide spectrum of anomalies: patent urachus, vesicourachal diverticulum, urachal sinus and cysts are more frequently seen than rare multiple urachal remnants. This kind of pathology focuses the problem of differential diagnosis (tumours, omental and ovarian cysts, vesical diverticulum or duplication) and may be complicated by a superinfection. The Authors discuss a bizarre multiple urachal remnant, presenting with urinary tract symptoms, which may be clinically confused with acute appendicitis or Meckel's diverticulitis. Contribution of sonography for a complete diagnosis is stressed, such as the precise correlation with surgical findings.