<prompt> Incidence of absent of kidney is300150030005000  <response>: 1500 1305-LB 1286-B L 25th An absent or grossly atrophic kidney is found in about 1:1400 individuals 1305-LB Renal ectopia - In approximately 1:1000 people, the kidney does not ascend, ectopic kidneys are usually found near the pelvic brim 1306-LB 