Appendicitis presenting with dysuria in a 2-year-old: ultrasound-aided diagnosis--a case report.

A 2-year-old Fijian boy presented with a week's history of fever and dysuria. On ultrasound scan of the abdomen, he was found to have an appendicular mass. The role of ultrasound in the diagnosis is emphasized as well as the need for consideration of appendicitis in any young child with abdominal pain.