Fig. 2.

a Sagittal T2 fat suppressed image of the left shoulder before treatment with hyperbaric oxygen shows subarticular geographical areas of high-signal intensity involving about 45% of the head of the humerus (stage IC, severe). No detected structural collapse of the head. Also noted geographical high-signal intensity in the proximal shaft. b Sagittal T2 fat suppressed image of the left shoulder after treatment shows nearly stable appearance of subarticular areas of high-signal intensity in the head of the humerus. However, significant improvement is noted in the proximal shaft with absence of high-signal intensity.