It is often implied that chromophobe adenomas of the hypophysis are without significant endo crine function (11). However, some hypophyseal tumors experimentally produced in mice by de stroying their thyroids with I131 have been de scribed as functioning chromophobe adenomas (9, 10). A review of the literature on the effects of thy roid deficiency in laboratory animals reveals wide discrepancie...

1. After thyroidectomy the glycosuria, produced by ether or adrenalin in the normal animal, is greatly reduced. 2. Thyroidless dogs fed on powdered thyroid glands show a return of glycosuria more or less proportional to the amount ingested when treated with adrenalin or ether. 3. As the thyroids regenerate the ether or adrenalin glycosuria increases similarly. The results of these experiments l...

The morphology of the tight junction of rat thyroid epithelium was examined in freeze-fractured material fixed in glutaraldehyde and briefly glycerinated. In normal thyroids the overall appearance of this junctional specialization resembled that of other cell types in many respects. Short-term changes in thyroid activity and hypophysectomy for 3 wk did not obviously affect the appearance of t...

High concentrations of thyroid-stimulating hormone (TSH) in the serum have often been reported in apparently euthyroid patients with damaged thyroids. We have confirmed this finding in 14 patients 18 months after subtotal thyroidectomy for Graves's disease (group 1) and in 14 patients with manic-depressive psychosis (group 2) receiving lithium carbonate, which reduces thyroid reserve. One facto...

The fine needle aspiration (FNA) biopsies performed on thyroid nodules at Turku University Central Hospital from 1983 to 1988 were reviewed. Of the 1,054 total aspirated nodules, 194 were investigated histologically after thyroid surgery (191 cases) or at autopsy (3 cases). Two cases with an insufficient FNA sample, 4 with an incidental occult papillary carcinoma and 2 cases with carcinoma outs...