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

This 2-month-old infant bot presented with urinary ascites   (Figure1)  and   (Figure2).  Note that the gass filled loops of bowel "float" on the ascites.   A Foley catheter was placed. A VCUG showed a thick-walled bladder wwith elevation of the base of the bladder above the pelvic floor   (Figure3)  and a hypertrophied interureteric ridge   (Figure4).  He had posterior urethral valves and the Foley balloon had been inflated in the posterior urethra above valves   (Figure5).  He underwent fulguration of the valves.