Abstract
Gastric carcinoma is reported to be more frequent in geographical areas where diets are either iodine-deficient or iodine-excessive. Reports have also shown an association between thyroid diseases and some of the risk factors for gastric carcinoma. We investigated the frequency of thyroid disorders in 61 patients with gastric carcinoma compared with 55 healthy control subjects. Thyroid health was evaluated by physical examination and by measuring the serum levels of thyroid hormones and thyroid autoantibodies. More patients with gastric cancer had goitre compared with healthy controls (49.1% versus 20%, respectively). Significantly more patients with gastric cancer had non-toxic goitre compared with control subjects. There was also a significant difference in the incidence of autoimmune thyroid disease--27.8% of patients with gastric cancer versus 10.9% of control subjects were affected. These results indicate that there is a significant association between gastric cancer and thyroid disorders.
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