Tumor Jokes

Have you heard the fast gladiator that was a tumor covered in dough?
He was a Roamin' Tumor Roll.
I've already heard seven cancer puns today.
If I hear tumor it's gonna benign.
My father had a colonoscopy.
Turns out he had colon cancer so he had to have surgery to remove the tumor. Now he has a semi-colon.
My hypochondriac brother just told me he thinks he's got a brain tumor.
I told him not to worry, it's probably all in his head.