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A 59-year-old woman fell from a horse and injured her left elbow. Four days later she sought evaluation for persistent swelling of her arm. On examination, the patient had a small, clean wound over the olecranon; there were no signs of infection. Diffuse crepitus of the arm, extending to the left chest wall, was noted. An oblique radiograph of the elbow (Panel A) and a posteroanterior radiograph of the chest (Panel B) demonstrated circumferential subcutaneous emphysema (arrows) of the upper extremity extending from the wrist to the left hemithorax. No rib fracture or pneumothorax was seen. The absence of air . . . [Full Text of this Article] |
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