<prompt> In a survey, many children are examined and were found to have urogenital abnormalities. Which congenital anomaly is associated with an increased risk of bladder carcinoma ?Medullary sponge kidneyDouble ureterUnilateral renal agensisBladder exstrophy  <response>: Congenital anomalies associated with an increased risk of bladder cancer are: patent urachus exstrophy bladder Both increase the risk for adenocarcinoma. 