On 3 phase 99m Tc – MDP bone scan, which of the following bone lesions will show least osteoblastic activity –
Correct Answer: Fibrous cortical defect
Description: Osteoid osteoma, Paget's disease and fibrous dysplasia have osteoblastic activity, therefore, show increased radioisotope uptake on bone scan.
Fibrous cortical defect shows no radioisotope uptake as it has no osteoblastic activity.
Category:
Radiology
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