Question

what is the most common primary malignancy of bone as seen on radiograph? please select your answer... a ewing sarcoma b metastasis c multiple myeloma d osteosarcoma

Explanation:

Metastatic tumors (metastasis) spread to bones from other primary cancer sites (like breast, lung, prostate) and are far more commonly detected as bone malignancies on radiographs than primary bone cancers. Ewing sarcoma, multiple myeloma, and osteosarcoma are primary bone malignancies but are less prevalent than metastatic bone lesions.

Answer:

B. metastasis