Q-26. On 3 phase 99mTc-MDP bone Scan, which of the following bone lesions will show least osteoblastic activity? (NEET Based)
a) Paget’s disease
b) Osteoid Osteoma
c) Fibrous Dysplasia
d) Fibrous cortical defect
Answer: Fibrous cortical defect
Explanation:
Hot spot in bone scan (Increased uptake of tracer): Seen in primary bone tumors
Paget’s disease
Osteoid osteoma
Osteomyelitis
Fibrosis dysplasia
Cold spot on bone scan: Decreased uptake of tracer
Multiple myeloma
Fibrous cortical defect