A 23-year-old man presented with urinary urgency and frequency associated with vague abdominal pain. Abdominal exam was unremarkable except for some mild suprapubic tenderness. He had had several episodes of non-specific abdominal pain in the past and the workup had been negative. A CT scan showed an enlarged, thickened appendix. The white arrow indicates the base and the yellow arrow the body of the appendix.