Cancer classification

Cancer classification involves categorizing cancers based on their origin, the type of cells involved, and how they behave. They are mainly grouped by the tissue they develop in (like lung, breast, or skin). Cancers can also be classified as benign (non-cancerous, slow-growing) or malignant (cancerous, invasive, and capable of spreading). Further, they are graded based on how abnormal the cells look, and staged by how far the cancer has spread in the body. This system helps doctors determine the best treatment and predict outcomes.