What is Xgeva (denosumab) and who should consider using it?

What is Xgeva (denosumab) and who should consider using it?
What imaging should be used to diagnose myeloma bone disease?
What is HRSMM (High-risk Smoldering Multiple Myeloma)? What are the guidelines?
Is there a clear definition for standard-risk smoldering myeloma?
Smoldering Multiple Myeloma (SMM) Basics
How is MGUS monitored? Should I see a specialist or seek treatment?