[Follicular thyroid cancer: the prognostic factors]

30 patients affected by follicular carcinoma of the thyroid gland (well differentiated, poorly differentiated and Hürthle's cell) are studied. We analyse the factors which affect the mortality; the percentage was of 63% during 3 years follow-up of metastatic patients and was null in non-metastatic patients (P < 0.0001); without significant differences between sex, age and histological type. Patients without metastasis at diagnosis had increased TG in 60% of the Hürthle's cell carcinomas and in 30%. Of the follicular carcinomas; poorly differentiated and not detected in 100% of the well differentiated follicular carcinoma, after a median follow-up of 7 years. This suggests that prognosis might be different depending of histological type.