I had five of eighteen lymph nodes cancerous but was classed N1. Google says N4 is extensive lymph involvement.
Hi Sally
I'm afraid I don't know what the significance of the N4 score is: here's a link to a useful overview of the other scores...https://prostatecancerinfolink.net/treatment/staging-grading/clinical-staging/ - the M score means that there's bone spread but no spread to other organs. Hope you are able to talk to someone in the care team sooner rather than later so that these impossible to deal with bits of clinical information might begin to feel more manageable.
Thinking of you. Take care.
E
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