Sentences with phrase «aggressive tumors do»
About 50 percent to 70 percent of patients with aggressive tumors do not respond to standard chemotherapy and suffer recurring tumors, Berry said.
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«But we didn't know whether this is a consequence of an aggressive tumor or rather its cause,» says Rudolf Kaaks, epidemiologist at the German Cancer Research Center (Deutsches Krebsforschungszentrum, DKFZ).
However, those who do (nearly 30,000 each year) develop aggressive tumors that grow and spread rapidly, sometimes even after radical surgery to remove all cancerous tissue.
Although some tumors may be formed by initiating cells that do not resemble stem cells, it is likely that stem cell — like tumor cells are more aggressive at forming tumors, with a higher likelihood of relapse and metastasis.
«We did surgery because such tumors are very aggressive, and without expeditious resection, it could fast become unresectable,» Liu said.
However, the study did not prove a cause - and - effect link between earlier mammograms and smaller tumors and less aggressive treatment.
Mast cell tumors are not as aggressive in cats as they are in dogs but it is still good to do a full workup to ensure the disease has not spread.