Many patients have no or minimal symptoms related to the tumor , and their metastases are found during a routine medical evaluation. If there are symptoms, they depend on the site involved.
• Brain metastases may cause headaches, dizziness, blurred vision, nausea or other symptoms related to the
  nervous system.
• Bone metastases may be evident because of pain, although they frequently cause no symptoms. The first sign
  of a bone metastasis may be when the affected bone breaks, often after a minor injury or no injury at all.
• Lung metastases may cause a non-productive cough, or a cough producing bloody sputum , chest pain or
  shortness of breath.
• Liver metastases may cause weight loss, fevers, nausea, loss of appetite, abdominal pain, fluid in the abdomen
  or jaundice (the skin turning yellow).