[Management of metastasis. Medullary cancers excluded]

Distant metastasis occur in 10-20% of well differentiated thyroid carcinoma mostly in lung and bones. Radioactive Iodine is the gold-standard for treatment. However surgery should be advocated in bone solitary metastasis, with a curative or palliative approach as in vertebrae lesions. It improves quality of life. External radiotherapy alone or combined with radioactive Iodine is useful in selected cases. Results of chemotherapy are poor.