Clinics in diagnostic imaging (61). Left primary megaureter with lower ureteric stone.

Megaureter is infrequently diagnosed in adulthood. A 27-year-old man who presented with recurrent left loin pain was found to have megaureter on intravenous urography. His symptoms did not resolve after balloon dilatation of the 3 cm stenotic aperistaltic segment of the lower ureter. He eventually underwent ureteric re-implantation with satisfactory symptomatic relief. The resolution of obstruction was demonstrated radiologically. The role of imaging in the diagnosis and surveillance of megaureter, as well as indications for intervention, are discussed.