Fig. 1

Whole body PET-CT following initiation of immunotherapy. Maximum intensity projection (a) and axial fused images (b-d) demonstrates symmetric increased metabolic activity at the bilateral supraspinatus (solid arrows), gluteus medius/minimus (dashed arrows), and semimembranosus (arrowheads) tendon insertions. There is also focally increased metabolic activity at the right elbow (asterisk)