Dr Lucy Brazil is a Consultant Oncologist who has been with Guy's and St Thomas' and King's College Hospitals since 2005. In 2007, she was awarded an MD for research into breast cancer genetics at the Institute of Cancer Research and Breakthrough Breast Cancer.

Dr Brazil trained in oncology at the Royal Marsden Hospital and Guy's and St Thomas' Hospitals. Her specialist interests include neuro-oncology, particularly high-grade glioblastoma multiforme and low-grade glioma, including oligodendroglioma and spinal tumours, as well as breast cancer, including the management of brain metastases. Dr Brazil has expertise in radiotherapy, both standard conformal and stereotactic techniques, including Cyberknife, Rapid-Arc, and IMRT. She also oversees chemotherapy and endocrine treatments.

Dr Brazil is a member of the NCI National Cancer Institute Brain Tumour Clinical Studies Group and the EORTC European Organisation of Research and Treatment of Cancer Brain Tumour Group. She is the chief investigator for the CODEL brain tumour study using chemotherapy and radiotherapy for grade 3 gliomas, chairman of the brain-tumour palliative care sub-group, and neuro-oncology research lead at Guy's and St Thomas'. Additionally, she is the systemic chemotherapy neuro-oncology lead at the hospital.

Her areas of expertise include radiotherapy, chemotherapy, immunotherapy, and palliative care. She treats conditions such as brain cancer, breast cancer, and various neuro-oncological disorders. Dr Brazil's commitment to advancing cancer treatment and her extensive experience make her a leading specialist in her field.