Fig. 1A–E.

Radiographs of a 6-year-old female patient treated after two fractures occurred earlier in the left proximal humerus. (A) Intraoperative check with the needle inserted. (B) Result at 2 months; intense periosteal reaction can be seen in the medial cortex of the cyst. (C) 6, (D) 12, and (E) 18 months followup. From 2 months to date, the patient was permitted to resume normal physical activity, including sports.