Malignancy of Unknown Origin (MUO)

A Malignancy of Unknown Origin (MUO) is the term we use when a patient is diagnosed as having cancer but the origin of the cancer cannot be identified. When an MUO is diagnosed it can be very hard to accept that even with tests, the primary cancer cannot be found. You’ll probably be coping with difficult feelings, so it is important to get the support you need.

How we support you

How can you contact us?

The MUO nurse at York can be contacted directly on 01904 724516 between 8.00am - 6.00pm, Monday to Friday

The MUO nurse at Scarbough can be contacted directly on 07979 645059 or 01723 236236 between 9.00am - 5.00pm, Monday to Friday.

Resident doctor strike action

Resident doctors will be taking strike action from 7am on 17 December to 7am on 22 December. Some appointments and procedures may be affected. If your appointment needs to be changed, we will contact you.

If you've not heard from us, please attend your appointment as planned.

Please continue to come forward for care, particularly in an emergency or life-threatening situation. Use NHS 111 to find the most appropriate service for your needs.