Why is DCIS sometimes more complicated than invasive breast cancer?

Professor John Boyages, MD, PhD is Professor of Breast Oncology and Director of the Macquarie University Cancer Institute. John is a cancer specialist with more than 35 years' experience in the diagnosis and treatment of breast cancer. He is Professor of Breast Oncology at the Faculty of Medicine and Health Sciences at Macquarie University in Sydney and Director of the Australian Lymphoedema Education Research and Treatment (ALERT) centre at Macquarie University. John regularly comments for the media and a media spokesperson for the McGrath Breast Foundation.