International braz j urol : official journal of the Brazilian Society of Urology
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To characterize and determine whether patients with recurrent abdominal symptoms and associated ureteropelvic junction obstruction (UPJO) (Dietl's crisis) are effectively treated by pyeloplasty and to determine criteria for evaluating UPJO in childhood abdominal pain. ⋯ Children with Dietl's crisis often suffer a delay in diagnosis; the clinical entity appears to be under-diagnosed. Renal parenchyma is typically preserved, and there is a paucity of associated urologic complaints. Once properly diagnosed, patients are well served by a pyeloplasty. Children with periumbilical pain and vomiting, particularly males, would benefit from ultrasound imaging.