The renal sonographic findings in ten cases of Bartter's syndrome inve
stigated at the King Khalid University Hospital, Riyadh, Saudi Arabia
are described. There were various sonographic abnormalities other than
those of hyperechoic pyramids as previously described. These were dif
fuse increased renal echogenicity and hyperechoic echogenicity in the
kidneys with the exception of the pyramids. This condition can be susp
ected early if nephrocalcinosis is present in a child with a history o
f polyhydramnios and premature delivery.