Early-stage breast cancer may contain motile cells

Researchers at the Salk Institute for Biological Studies suggest that although tumour cells during the early-stage of breast cancer do not appear to be invasive, they may already contain motile cells that can wander off via milk duct and start a new tumour somewhere else in the same breast. This discovery is important because the cancer cells may become migratory earlier than expected, and this will change the treatment approach.