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Cancer of Unknown Primary Origin

Internet URL

http://cis.nci.nih.gov/fact/6_19.htm

Sponsoring Agency

Cancer Information Service, National Cancer Institute

Description

When doctors cannot determine the location of the primary cancer site, they call the disease cancer of unknown primary origin (CUP). About 2 to 4 percent of all cancer patients have CUP.

Related Topics

Review Date

6/14/2004

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