Question:

Title: Clavicle pain.

History: a 16 year old male with history of repeated trauma to left clavicle presented with intermittent and worsening left clavicular pain for several months (Figs. 1, 2, 3, 4, and 5).

Fig. 1
figure 1

AP radiograph of the left clavicle at first visit

Full size image
Fig. 2
figure 2

a. HE stain 100X. b HE stain 100X

Full size image
Fig. 3
figure 3

AP radiograph of the left clavicle 1 month after first visit

Full size image
Fig. 4
figure 4

AP radiograph of the left clavicle 7 months after first visit

Full size image
Fig. 5
figure 5

AP radiograph of the left clavicle 1 year after first visit

Full size image