Not all breast cancer patients need chemo, major study finds

Two-thirds of women with the most common form of breast cancer may not need chemotherapy. That's the conclusion reached from a major trial, involving a common genetic test. Doctors say using the test to analyse early-stage tumours will help identify those that can be treated with surgery and hormone therapy alone.

Chemotherapy drugs are administered to a patient at North Carolina Cancer Hospital in Chapel Hill. Source: AAP