I'm conducting some research for a paper I'm writing in college (a technical writing course). Now, I'm remembering back to a class I took, where a teacher was going over mammography and breast cancer. She mentioned a relatively rare type of breast cancer that remained difficult to detect (including lack of signs/symptoms) until it was in a virtually lethal state.
Now, I can't for the life of me remember what it's called. Do any of you know? Thanks!