PMC6352053_01
a, b and d) showing FDG avid lesion in T12 vertebra, c) showing classical polka dotted appearance of plain CT images
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F1
Axial CT images showed 'polka dot' appearance in 12th thoracic vertebra suggestive of hemangioma (Figure1c).  However, the lesion showed intense FDG uptake with SUV max of 13.44 (Figure 1a, b, d) raising a suspicion of metastasis.
Bone scan shows no evidence of focal increased osteoblastic activity
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F2
Tc-99m-MDP (Methylene Diphosphonate) using a single head E-cam gamma camera (Siemens) equipped with low energy high resolution collimator. The images did not reveal any osteoblastic lesion (Figure 2).