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[The effect of amniofetography on the fetal thyroid (author's transl)].

Although there are certain advantages of amniofetography they must be considered against the risk of fetal hypothyroidism "in utero" with its prognostic danger. The authors report six case histories which illustrate this risk and they draw attention to the possible effect on the thyroid gland "in utero". Amniofetography should therefore be reserved solely for those cases in which the indications exist and there are no other possible means of diagnosis. If it is indicated means must be found of treating the possible transitory iatrogenic hypothyroidism.