Robert L. Lebowitz, M.D. Children' s Hospital, Harvard Medical School Boston, Massachusetts

Eleven-year -old girl with urinary tract infection. Ultrasonography showed a normal right kidney and a left kidney (fig.1) that was slightly low in position, slightly unusual in shape, and without a renal sinus echo complex.(fig.2) VCUG showed reflux into the normally positoned and normally rotated right kidney (fig.3), and reflux into the nonrotated, slightly low, left kidney which had an extrarenal collecting system.(fig.4) See Barnewolt CE, Lebowitz RL. Absence of renal sinus echo complex in the ectopic kidney of a child: a normal finding. Pediat Radiol 1996;26:318-323