An ectopic ureter draining into the seminal vesicle or vas deferens in males is a very rare anomaly and is usually associated with renal dysplasia or agenesis. An ectopic ureter associated with a dysplastic kidney is not usually a suspected cause during clinical evaluation of children with abdominal pain. This report presents a rare case of an ectopic ureter associated with a dysplastic kidney with an acute infection in a previously healthy 12-year-old boy, demonstrated by magnetic resonance imaging. He presented with abdominal pain that mimicked acute appendicitis-like symptoms which was subsequently complicated by epididymitis manifesting as an acute scrotum. Clinicians should consider including an ectopic ureter in the differential diagnosis of children presenting with acute abdomen.
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