[Persistent multiple urachal complex. Echographic-surgical correlations]. / Complesso uracale multiplo persistente. Correlazione ecografico-chirurgica.

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.

Contribution of ultrasonography in the diagnosis of achalasia.

We present a case of achalasia diagnosed with the aid of ultrasonography (US). After having examined the clinical-radiological characteristics of the disease, and after having noted the diagnostic possibilities of manometry and endoscopy, we emphasize the use of US to clearly show the thickening of the muscular wall and the dilatation of the distal esophagus. In those of pediatric age, particularly, US permits differential diagnosis with the esophageal leiomyoma, which is difficult to obtain with other techniques. We suggest, therefore, including US in the study of patients with stenosis of the third distal section of the esophagus.

Radiographic findings in Wiedemann-Rautenstrauch syndrome.

We describe a girl who presents the features of Wiedemann-Rautenstrauch syndrome. This autosomal recessive condition has characteristic radiographic findings which can be considered manifestations of the syndrome.