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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 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. 

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Hospital phone line disruption

We are currently experiencing technical difficulties with our hospital phone lines, which means they are temporarily unavailable. We apologise for any inconvenience this may cause and thank you for your patience while we work to resolve the issue.

If you have an upcoming appointment, you can find helpful information about your visit, including how to get here and what to bring, on our website: www.yorkhospitals.nhs.uk/outpatients.

If you need to cancel an appointment, you can do so using the online cancellation form, which is also available on our outpatients webpage.