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You are seeing a 5 year old girl who presents with dysuria and small amounts of blood in her underwear for 3 days. She has no fever, urinary frequency, abdominal pain, or history of trauma or straddle injury. Her mother noted a swelling at her vaginal introitus and shows it to you. She has a red donut-like mass just above the vaginal introitus where you expect to see her urethra.