Does rapid growth of fibroids signify cancer?
A rapid increase in size (an increase of 2-4 weeks size on examination by the same examiner, done 2-3 months apart, or an increase of 6 weeks size over one year) has been thought to be associated with malignancy (sarcoma). Fortunately, this does not seem to be the case. In one study of over 1300 women operated on for presumed fibroids the incidence of uterine sarcoma was only 0.23%. Of the 371 women operated on specifically for “rapidly growing fibroids” only 0.27% were found to have sarcoma.
