> cancer is malignant by definition A distinction without a difference. You can label a slow-growing tumor as "not-cancer" if you want, for psychological reas

> cancer is malignant by definition A distinction without a difference. You can label a slow-growing tumor as "not-cancer" if you want, for psychological reasons, I guess; "cancer" just sounds scarier. Some slow-growing "not-cancer" tumors are faster than others. It's a sliding scale, not a dichotomy.