Dolph Lundgren, here in March, has quietly been fighting cancer since doctors found a tumor in his kidney in 2015.
Mandatory Credit:	Michael Kovac/Getty Images

Dolph Lundgren, here in March, has quietly been fighting cancer since doctors found a tumor in his kidney in 2015.
Mandatory Credit: Michael Kovac/Getty Images

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Dolph Lundgren reveals cancer battle

A second opinion helped turn around actor Dolph Lundgren's battle with cancer.