This observational study aims to assess the diagnostic value of SPECT/CT of 99mTc-MDP bone scintigraphy in differentiating begnin from malignant bone lesions. The main question it aims to answer is: ●Can SPECT/CT-derived quantitative parameters (SUVmax, SUVmean) accurately differentiate between begnin and malignant bone lesions in clinical settings? Final diagnostic impression: confirmed by biopsy (if available), or through multidisciplinary radiologic-clinical correlation
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To measure SUVmax and SUVmean of bone lesions using quantitative SPECT/CT.
Timeframe: Baseline
To compare these values between malignant and degenerative lesions confirmed by clinical, histological, or radiological follow-up.
Timeframe: Baseline