Woudn't they need to know a lot more about this suspected cancer, for carT to work? They seem to be in the dark even what type it is, and seem to be even somew

Woudn't they need to know a lot more about this suspected cancer, for carT to work? They seem to be in the dark even what type it is, and seem to be even somewhat misled by physicians (clearly spreading, or maybe he doesn't understand staging).