Agenesis of Kidney

Etiology: failure of induction of the nephrogenic blastema by ureteric bud -> absent kidney -> oligohydramnios -> Pulmonary hypoplasia + Potter sequence
Imaging: prominent adrenal, microbladder due to not being used
Clinical: can be unilateral or bilateral

Cases of Agenesis of Kidney

IVP of renal agenesis — AP image from the nephrogram phase of a vintage intravenous pyelogram shows a dense nephrogram in the right renal fossa representing the right kidney with contrast draining down the right ureter and filling the bladder. There is no nephrogram noted in the left renal fossa.