A 12-year-old boy presents to the emergency department with acute pain in the medial aspect of his right elbow after pitching in a baseball game.
A 12-year-old boy presents to the emergency department with acute pain in the medial aspect of his right elbow after pitching in a baseball game. He also complains of dull lateral elbow pain that has been present for weeks. AP, oblique, and lateral radiographs of the right elbow were obtained.
What's your diagnosis?