Abstract
A 54-year-old postmenopausal woman is described who quite suddenly experienced intense tenderness and tension in both breasts lasting for about 3 weeks. Subsequently she had a uterine bleeding. Excessively increased levels of estradiol (peak value 2 325 pmol/1) were found during the period of mastodynia. Seven months previous to this event, hyperthyroidism had been diagnosed. She had, however, been treated with porpylthiouracil and was euthyroid long before and during the period of mastodynia.
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