Findings
X-rays of the pelvis and hips showed destruction of the left SI joint with loss of the joint space. There was sclerosis noted on both sides of the joint. A Tc-99m MDP bone scintigram showed increased activity on the flow image, the blood pool image and the delay images in the region of the left SI joint. There was also noted increased uptake in the left femur. A gallium-67 scintigram was positive in the same regions with much increased uptake in the left SI joint.
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J. Anthony Parker, MD PhD, jap@nucmed.bih.harvard.edu