The Oxford Case Histories series provides complex, case-based learning for medical trainees undertaking their exit examinations as well as consultants wishing to undertake continuing professional development. The skills necessary for confident and competent diagnosis and successful management of complex medical problems are developed through the study of individual patients. This series offers real-life cases specifically written to help enable trainees to meet the required standard prior to being awarded a certificate of completion of training (CCT). Each volume in the series is mapped to the core curricula and includes between 40-50 cases, comprising a brief clinical history and investigations, followed by questions on differential diagnosis and management, and detailed answers with discussion. At the end of each book, cases are listed by mode of presentation, aetiology, and diagnosis for quick reference. The series covers a wide range of specialties including general surgery, geriatric medicine, and infectious disease, and is an excellent revision aid for clinicians in specialist training (MRCP and above) and consultants undertaking continuing professional development. Dr Sarah Pendlebury, Oxford University Hospitals NHS Foundation Trust; and Professor of Medicine and Old Age Neuroscience, University of Oxford, UK Dr Peter Rothwell, Head of the Wolfson Centre for Prevention of Stroke and Dementia, Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford; and Professor of Clinical Neurology, University of Oxford, UK