I need more information.
How invasive was the cancer?
What type was it?
When go under the knife every day for a routine procedure, and wake up sans utererus and ovaries.
Erm....the nature of the cancer is a bit immaterial.
There would have been nothing to stop the medical team from waking the poor fella and talking to him.
If "whens" are women, and women are going in for routine procedures and waking up without uterii and ovaries, then, in the absence of the discovery of a catastrophic heammorhage or infection or somesuch during surgery, they are having illegal operations unless they consented to such surgery taking place if deemed necessary.
This happening to women does not make the removal of a penis without consent ok.