Sir, my son got operated at the of 14 days old after birth, becoz of urine obstruction, posterior urethral value, now at the age of 2 years ultra sound scan shows his right kidney measures 4.5×1.8 cm small in size & shows moderate dilatation of PCS & proximal ureter and left kidney measures 7.5×3.3 cm moderate dilatation of PCS noted what it means sir, plz kindly help me sir