[Disorder of thyroid function in patients with cancer of the gastrointestinal tract]

A quantitative assessment of T3 pool was performed in patients with malignant tumors of the esophagus, stomach, pancreatic head, rectum and colon as well as in patients with chronic gastritis, peptic ulcer and benign stomach tumors. A high T3 pool deficiency was noted in patients with malignant GIT tumors. It was assumed that such a deficiency was indicative of profound disorder of hormone supply of tissues which could be regarded as an endogenous factor of predisposition to the development of malignant neoplasms.