ON THIS PAGE: You will find descriptions of the most common types of CUP tumors. To see other pages, use the menu on the side of your screen.
Most people with CUP have one of four types of tumors:
Adenocarcinoma. Nearly 60% of people with CUP have adenocarcinoma. Adenocarcinoma can develop in the glandular tissue of most internal organs, including the lungs, stomach, pancreas, colon, ovary, and breast. Because of this, it is extremely difficult for a pathologist to tell where an adenocarcinoma began when it is found at a metastatic site.