Your calcium level can become too high if your cancer has spread to the bones, causing calcium to be released. Or your cancer may release certain hormones that affect the normal systems that control the calcium level in your blood.
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Dyspnea is the technical word for difficulty breathing. It's a common symptom in people who have lung cancer or have cancer that has spread to the lungs.
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The female hormones estrogen and progesterone promote the growth of some breast tumors. Hormonal therapy may be given to block these hormones from stimulating tumor growth.
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