Malignant follicles of a differentiated thyroid carcinoma releasing iodinated thyroglobulin into the lymphatic vessels.


Serial sections across a follicular thyroid carcinoma taken from a 71-year-old woman with hyperthyroidism and grossly elevated serum thyroglobulin were examined by PAS staining and autoradiographic techniques. PAS positive material, presumably thyroglobulin, was found in the interstitial network between follicles. Some of this material was… (More)


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