Cancer of unknown primary (CUP)
Cancer of unknown primary (CUP) means that cancer spread has been found somewhere in your body (secondary cancer), but your doctors can't find where the cancer started (the primary cancer). CUP is sometimes called unknown primary cancer or unknown primary tumour. You can find information on causes, tests to diagnose cancer, treatment including radiotherapy, chemotherapy, hormone therapy and current research. The living with cancer of unknown primary section covers coping with your diagnosis.
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