Baumann K, Weitzel M, Bürgi H
Schweiz Med Wochenschr. 1979 Mar 3;109(9):309-14.
Report on 6 female patients with follicular thyroid carcinoma producing hyperthyroidism. Two of them had large metastases with hormone production, while 4 mimicked an autonomously functioning thyroid adenoma. Hormone synthesis was investigated in the tumor tissue of one patient and was found to be similar to that of normal thyroid tissue.