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

In basic terms for a 5 year old. Cancer is cells that have gone bad. Cells look different depending on where they come from in the body. So a cancer of the brain that came from the lungs would look like lung cells that have gone bad even though it’s in the brain now