Localized malignant renal tumors requires a
surgical intervention as first line treatment by partial nephrectomy, or if it
is not feasible, by radical nephrectomy. The risk for recurrence after surgery
is about 30 to 40%, with median delay time of 15 month. Although the first
metastatic site is pulmonary, it is not rare to observe some metastasis in
other organs such as thyroid.
The renal origin of thyroid metastasis is an
important prognostic indicator to consider, because it determines
the therapeutic management of a patient. It has been demonstrated that
these secondary sites could not be synchronous, and can occur until more than
twenty years after the initial nephrectomy.
We report the case of a 70 year old patient
followed for asymptomatic multi-nodular goiter diagnosed with a thyroid
metastasis of renal carcinoma operated eight years ago.
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