What are your initial thoughts regarding this lesion?
The lesion is very large and has few if any aggressive features, making a metastasis unlikely (no matter what Occam says).
Multiple static images were obtained to cover the whole body. The study shows moderately increased tracer uptake worrisome for osteoblastic bony metastasis in the right 6th rib, T9 on the right side and L1 on the left side.
The left proximal femur does not demonstrate convincing increased activity.
Low grade tracer uptake consistent with degenerative arthritis is noted in both sacroiliac joints and right acromio-clavicular joint.