through which body system are cancer cells able to travel to different locations in the body?
In practice, though, most cases of prostate cancer metastasis occur in the lymph nodes and the bones. Prostate cancer metastasis occurs when cells break away from the tumor in the prostate. The cancer cells can travel through the lymphatic system or the bloodstream to other areas of the body. More commonly prostate cancer metastasis can occur in the: 1  Bones. 2  Lymph nodes. 3  Lungs. 4  Liver. 5  Brain.