Additional biopsies for recurrent or progressing breast cancer may aid treatment
Women whose breast cancer is detected early stand the best chance to respond positively to appropriate treatments, which may advise them to buy Canadian Tamoxifen.
Women whose breast cancer is detected early stand the best chance to respond positively to appropriate treatments, which may advise them to buy Canadian Tamoxifen. Different forms of malignancies will respond to different therapies. However, new research from Princess Margaret Hospital in Toronto suggests that patients who have additional biopsies to screen recurrent or progressing breast cancer may benefit from changes in their treatment plans.
Scientists examined 121 biopsies from patients whose malignancies were progressing or recurring. They were looking for any physical changes that stood out from the initial biopsies, such as the presence or absence of hormone receptors. Such alterations can dictate the course of appropriate treatment.
Results showed that it is possible for breast cancer that was initially screened as receptor negative to actually become receptor positive, as published in the Annals of Oncology.
"More recently we have learned that patients with a change in receptor status may have worse outcomes from breast cancer, possibly due to basing treatment on incorrect predictive markers," said researcher Eitan Amir. "However, our study shows that if treatment is modified according to biopsy results from a metastatic site, the survival rates of patients with recurrent disease which is different from the original tumor were similar to those where disease was the same."
This study encourages patients to ask their doctors if a repeated biopsy is necessary, the researchers said.
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