Thanks for your question on Healthcare Magic.
I can understand your concern. Carcinoid
syndrome is condition in which body produce high levels of serotonin (hormone).
There are many causes for this syndrome but most common cause for this is malignancy (cancer).
Since he is having multiple liver
metastases, possibility of lung or intestinal cancer is more. Lung cancer
is likely to produce Carcinoid syndrome with liver metastases, same is true for intestinal cancer.
In any case, prognosis is poor.
Only treatment option is chemotherapy
(Lar injections). These injections are costly.
Usual life expectancy is less than 1 year.
With chemotherapy, life expectancy is slightly better, 1.5 years.
Hope I have solved your query. I will be happy to help you further. Wishing good health to your father. Thanks.