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Screening and examination of bone metastasis. ECT, Emission computed tomography. a, Clinical manifestations of bone metastasis include bone pain, restricted activities, pathologic fractures, spinal cord and spinal nerve compression, and hypercalcemia; b, Advanced malignancies and malignant tumors at high risk of bone metastasis; c, PET-CT is not routinely recommended due to its high price; * see Figures 1,3.
