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We are Macmillan. Cancer Support
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Information on primary and secondary cancers in relation to cancer of unknown primary
Information on cell types and cancer of unknown primary (CUP).
An explanation of what cancer of unknown primary (CUP) is and possible reasons why the primary cancer can't be found
For answers, support or just a chat, call the Macmillan Support Line free (Monday to Friday, 9am-8pm).
If you have any questions about cancer, need support or just want someone to talk to, ask Macmillan.
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© Macmillan Cancer Support 2014
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