A 7-year-old girl presented with recurrent episodes of painful swelling below the left ear and no history of fever, malaise, or other symptoms. All of her prior episodes were self-limited and of similar severity. She was asymptomatic between episodes. There was no other relevant medical or dental history. The patient was up to date on all vaccinations. The physical examination revealed tenderness to palpation below the left mastoid tip without appreciation of a focal mass. The remainder of the examination was unremarkable.