This review by Rougraff presents a stepwise diagnostic algorithm for evaluating patients older than 40 who present with a bone lesion of suspected metastatic origin when no primary cancer is known. The paper asks: what is the most efficient, oncologically safe sequence of workup steps to identify the primary — and when should biopsy occur?
When a patient over 40 presents with a poorly marginated proximal bone lesion and no known cancer history, run the full staged workup — history, labs (including SPEP/UPEP and PSA), chest X-ray, bone scan, and CT — before touching it with a needle: biopsy is the last step, not the first, and a poorly placed biopsy in an occult sarcoma can cost the patient their limb.
If the lesion looks pathologic and a fracture is present, rule out primary bone sarcoma by biopsy before placing any hardware.
This review by Rougraff presents a stepwise diagnostic algorithm for evaluating patients older than 40 who present with a bone lesion of suspected metastatic origin when no primary cancer is known. The paper asks: what is the most efficient, oncologically safe sequence of workup steps to identify the primary — and when should biopsy occur?
When a patient over 40 presents with a poorly marginated proximal bone lesion and no known cancer history, run the full staged workup — history, labs (including SPEP/UPEP and PSA), chest X-ray, bone scan, and CT — before touching it with a needle: biopsy is the last step, not the first, and a poorly placed biopsy in an occult sarcoma can cost the patient their limb.
If the lesion looks pathologic and a fracture is present, rule out primary bone sarcoma by biopsy before placing any hardware.