by Marija Karakolevska -
Ilova
Introduction: Metastatic
cancer in the thyroid is uncommon and large autopsy studies found out that the
incidence of thyroid metastases in patients with a history of cancer ranges
from 1.9% to 24%, so in any patient with a previous history of malignancy, a
new thyroid mass should be considered as recurrence until proved otherwise. The
most frequent primary cancers are renal cell (48.1%), colorectal (10.4%), lung
(8.3%) and breast (7.8%) cancers.Most patients with thyroid metastases have
widespread metastatic disease but occasionally the thyroid may be the only site
of disease with the same impact on prognosis as nonthyroidal metastases.
