An Unusual Stress Fracture Site: Midhumerus.

In brief A bodybuilder who reported left shoulder and upper arm pain was found to have a midhumeral stress fracture. Stress fractures are uncommon in non-weight-bearing bones, but a careful history that includes type, frequency, and duration of exercise can raise suspicion, and a physical examination, x-ray, and bone scan can detect the defects when they occur. Technetium bone scan can confirm injuries that are usually only suggested by x-rays.