Abstract: (5991 Views)
Background: Thyroid cancer is a rare disease which includes less than 1%
percent of all human cancers. The aim of this study is to evaluate the
demographic characteristics and risk factors among patients with thyroid
malignancy at the Cancer institute and Imam Khomeini hospital in Tehran
Iran.
Methods: This is a retrospective descriptive study of the charts of 320
patients admitted with the diagnosis of thyroid malignancy based on
pathologic reports in the above- mentioned hospitals from 1992 to 2002.
Results: From the 320 patients diagnosed with thyroid malignancy 68.1%
were papillary cancer, 10.9% were follicular cancer, 10.6% were anaplastic
cancer, 9.06% were medullary cancer and 1.2% were lymphoma.
The average of the patients was 50.2 years, ranging from 12 to 98 years
60.6% were female and 39.4 %were male 22.8% of the patients had
histories of thyroid nodule and 5% had received radiation therapy.
From the anatomic point of view 57.5% of the cancers were in the right lobe
of thyroid, 38.1% were in left lobe and 4.4% in the isthmus. None of the
patients had positive family history of thyroid malignancy.
Conclusion:
Thyroid malignancy is more prevalent in the fifth decade of life and more
common among females. Therefore, among patients in this group, alarming
symptoms, such as anterior neck mass, thyroid nodule and voice change,
should be evaluated more seriously.