25th September 2020

A 20-year-old man presents to the Emergency Department with acute onset pain in his right knee

A 20-year-old man presents to the Emergency Department with acute onset pain in his right knee. He described the joint becoming extremely painful and swollen following a light knock against the edge of a table. On examination, his right knee appears swollen compared to the left and the range of movement is significantly restricted.

For the patient above, please select the SINGLE most likely diagnosis. Select ONE option from the list above.