Question

a metastatic focus located distal to the elbow is best termed
a) an osteoblastic metastatic focus.
b) an acral metastatic focus.
c) an appendicular metastatic focus.
d) an osteolytic metastatic focus.

Explanation:

• Option A: Osteoblastic refers to bone-forming metastases, not location.
• Option B: "Acral" describes structures distal to the elbow/wrist (hands, fingers) or knee/ankle (feet, toes), matching the distal elbow location.
• Option C: Appendicular refers to the entire limb bones (upper/lower), not the distal elbow region specifically.
• Option D: Osteolytic refers to bone-destroying metastases, not location.

Answer:

B) an acral metastatic focus.