<prompt> In a patient diagnosed to have choriocarcinoma which is the most common site of metastasis?LiverLungsBrainOvaries  <response>: Lungs are the most common site of metastasis 75 followed by vagina 50. The vulva, kidneys, liver, ovaries, brain, and bowel also may contain metastases. Metastases often develop early and are generally blood-borne because of the affinity of trophoblastic cells for blood vessels. 