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En el cáncer metastásico, las células cancerosas se separan del lugar donde se formaron por primera vez (cáncer primario), viajan a través del sistema sanguíneo o linfático y forman tumores nuevos en otros lugares. Este proceso se llama metástasis. Comience aquí para encontrar más información.

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Information on the Public Health Service Act and related legislation that directly impacted the mission of NCI.

You’ve probably heard of fibromyalgia, but you may not know what it is. Fibromyalgia is a long-term (chronic) pain condition that affects 5 million or more Americans ages 18 and older. For unknown reasons, most people diagnosed with fibromyalgia are women, although men and children also can be affected. People with certain disorders, such as rheumatoid arthritis or lupus, may also have fibromyalgia, which can affect their disease course and treatment.

For surgeons, removing a tumor is a balancing act. Cut out too much and you risk removing healthy tissues that have important functions. Remove too little and you may leave behind cancer cells that could grow back into a tumor over time. NIH-funded researchers are developing new technologies to help surgeons determine exactly where tumors end and healthy tissue begins. Their ultimate goal is to make surgery for cancer patients safer and more effective.

It’s always a good time to resolve to eat better, be more active, and lose weight. For the more than 2 out of 3 Americans who are either overweight or obese, there’s now a free, research-based tool to help you reach your goals: the NIH Body Weight Planner.