近年来一些文献报道,乳癌、肺癌、结肠癌和胃癌等恶性肿瘤,均可导致甲状腺功能的变化,出现低 T_3综合征。为此,我科自1985年3月至1987年4月,对无甲状腺疾患也未使用影响甲状腺功能药物的50例直肠癌进行血清 T_3、T_4测定,并观察其变化与直肠癌分期的关系,初步分析如下。 In recent years, some reports have reported that malignant tumors such as breast cancer, lung cancer, colon cancer, and gastric cancer can all lead to changes in thyroid function and low T 3 syndrome. Therefore, in our department from March 1985 to April 1987, serum T 3 and T 4 levels were measured in 50 cases of rectal cancer without thyroid disorders and thyroid function drugs, and the relationship between changes and rectal cancer staging was observed. The preliminary analysis is as follows.