Lets say someone goes to the doctor: The doctor sees tumors in the lungs and in the liver. Why does the doctor know that its liver cancer that spread to the lungs and not lung cancer that spread to the liver?

Question

Lets say someone goes to the doctor: The doctor sees tumors in the lungs and in the liver. Why does the doctor know that its liver cancer that spread to the lungs and not lung cancer that spread to the liver?

In: 1592

Answer 1

Cancer is what happens when cells grown in a manner that they are not supposed to grow. When they reach a certain point, they can break loose and spread too other parts of the body. This is called metastasizing. In your example, the doctors will find lung cells in the liver or conversely liver cells in the lungs.