There are two possible additional arguments that militate in favour of both early detection & treatment of bone cancer:
First, there is a vicious cercle between cancer & bone degradation by cancer. They reinforce each other according to some basic research. This may mean for some patients a cancer that progresses faster.
Second, if cancer progresses faster it becomes less responsive to slow but otherwise effective non cytotoxic treatments such as antiangiogenesis agents or metronomic administration of chemo drugs .
This reduces the number of available treatment options when the worsening condition of the patient calls for more not less safe alternatives.
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