Diagnose en behandeling van mega-ureters bij kinderen

– In connection with 4 cases of megaureter in children, the diagnosis and the therapy of this condition are described. The term megaureter describes a large wide ureter. It may be associated with reflux or obstruction or be present withoat reflux andor obstruction.The diagnosis of obstruction by renography may be difficult because of diminished glomerular filtration rate, either physiological or due to a decreased number of glomeruli, a high compliance of the collecting system, diminished urinary output or a filled bladder. Clear cases of obstruction andor reflux should be treated operatively. In the asymptomatic child with a primary obstructive megaureter and a good relative function conservative treatment may result in reducing the dilatation without loss of kidney function.