A 16-year-old girl presents with chronic pelvic pain that ha…
A 16-year-old girl presents with chronic pelvic pain that has progressively worsened over the last 18 months. Her pain is both cyclic and non-cyclic, with sharp flares during menstruation and a dull ache throughout the month. She reports painful bowel movements during menses, bloating, and intermittent nausea. She denies sexual activity. NSAIDs provide limited relief. She has tried combined oral contraceptives continuously for 6 months with partial improvement. Pelvic exam is limited due to discomfort. Pelvic ultrasound is normal. Which of the following would be the most appropriate next step in evaluation or management?