Fig. 1
From: Molecular causes of congenital anomalies of the kidney and urinary tract (CAKUT)
Imaging studies in patients with different CAKUT. (a) Mild dilatation of the kidney pelvis (11 mm); (b and c) severe dilatation of the kidney pelvis (290 mm); and calyxes due to ureteropelvic junction obstruction (UPJO). (d) Small and hyperechogenic right kidney without corticomedullary differentiation suggesting kidney dysplasia; (e) Dilatation of the right ureter retrovesically; (f) voiding cysturetrography (VCUG) demonstrating bilateral VUR V° in the filling phase in the same patient as in e (International Reflux Study Committee (1981)). Contrast agent was administered using a transurethral catheter. (g) Contrast-enhanced uro-sonography in a patient with VUR III°. Contrast agent is detectable in the right kidney pelvis