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Cancer
UCI Health will see you now: Welcome to our new
co-workers
and
patients
from Fountain Valley, Lakewood, Los Alamitos and Placentia-Linda!
In this Section
Cancer
Carcinoma of Unknown Primary- Overview
In carcinoma of unknown primary (CUP), doctors can’t tell where the cancer started. CUP has already spread by the time it’s diagnosed. Learn more about symptoms, diagnosis, and treatments.