Clinical calcium
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Almost all bone metastases of cancer with pain are indicated to radiotherapy (RT). Pathological fracture, impending fracture at lower extremities and radio-resistant tumor should receive preceding surgery. RT is set up to fix lesional bone and consists of 30Gy÷10fr÷2w to rectangular fields opposed anteroposteriorly in general. ⋯ RT has, however, adverse effects, for example, radio-induced dermatitis and bone marrow suppression. Pay attention for large field or high dose. Optimum field and dose fraction schedule should be considered.