there are various methods like radioablations, hepatic artery
resection of the tumor part of the liver
since you have high levels of the tumor marker
it shows the persistence of the mets.
rule out recurrence of primary elsewhere in the gi tract or in rectum
by doing a scan a CT or a MRI.
however i would advise you to meet your physicain and put forth your query. this will help them to treat you better.
for any further query pls contct us at HCM.
i wish you good health.