It varies: It depends on their organ of origin. Adenocarcinoma of breast is much different than one arising in the colon or in the lung. Sometimes we can not find their primary origin...So called adenocarcinoma of unknown primary(acup) which has once of the worst outcomes and it causes serious trouble in 4-6 months. If you can tell us your complete history, i can be more exact in my response.
Answered 3/7/2016
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