Refusal to Walk In A 2-Year-Old Female

Initial Presentation: A previously healthy 2-year-old female presents with a new left leg limp and refusal to walk. There is no recent history of trauma, fevers, cough, congestion, vomiting, diarrhea, or dysuria. She has had decreased appetite and lost 2 pounds in the past month. She sometimes wakes up at night crying due to her leg pain. NSAIDs have not improved her symptoms. Per parents there has been concern for speech delay, but she has been meeting developmental milestones otherwise. Physical Exam: Vital signs are within normal limits. On …