The patient is an 8-year-old boy with pain in the right foot for the last several hours. He refuses to walk on the foot. There is no reported injury.
On physical exam, you find there is a normal appearance to the foot (no erythema, swelling). However, there is pain with palpation over the plantar aspect of the mid aspect of the right foot.
View the image taken (Figure 1) and consider what your diagnosis would be. Resolution of the case is described on the next page.