Reproductive life and differentiated thyroid carcinoma in women: reciprocal influences on their respective outcome.

To analyze the reciprocal influences between female reproductive life and DTC management. Data on pregnancy outcome in DTC patients indicate that after conceiving, these women may need an increased L-T4 dose to maintain suppressed serum TSH levels. Nevertheless, this does not determine major harm in terms of pregnancy outcome. Analogously, the most recent findings obtained with the propensity score matching approach have confirmed that pregnancy does not significantly affect DTC clinical course and eventually tumor prognosis. A recent metanalysis and a large case-control study excluded a significant effect of radioactive iodine treatment (RAIT) on several reproductive variables in DTC patients, providing reassuring evidence that the current recommendations on RAIT for women of childbearing age are sufficiently well tolerated and do not affect fertility nor pregnancy rate. Overall, the most recent studies have provided sufficiently reassuring evidence that the occurrence of pregnancy and DTC management are of no reciprocal harm for adverse outcome in affected women of childbearing age. Thus, female DTC patients should be managed according to the individual response to treatment before pregnancy. When DTC diagnosis is made after conception, delaying surgery does not represent a harm in most patients.

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