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

Adding to this – tumours often metastasise in a very predictable way due to vascularity and circulation. Eg prostate cancer very often metastasises to bones so a bone profile with increased ALP is a marker. Bone cancer doesn’t metastasise to the prostate (usually) evidence – I’m a chemical pathologist.