[Biochemical data in the fluids of cystic degenerated euthyroid goiters (author's transl)]

Examinations of sera and cyst fluids in patients with cystic degenerated euthyroid goiters showed significant differences between the values of the cyst fluids and sera for almost all of the chemical substances. In the brown cyst fluids there are mostly higher values compared with the appropriate sera. Autolysis, diffusion and resorption, metabolic changes and, in the case of thyroid hormones, active incretion by wall-forming thyroid tissue, are the reasons for these differences in the concentrations.