Book excerpt: Providing the inside track on how the experts approach and deal with real-world clinical scenarios, Challenging Concepts in Oncology contains wide-ranging and in-depth reviews of contemporary and often contentious topics in the world of oncology today. With a case-based approach and expert commentary throughout, complex patient presentations are discussed from a multidisciplinary perspective and all the angles necessary for accurate assessment, diagnosis, and management are fully considered and explored. Each case contains 'Clinical Tips', 'Learning Points', 'Expert Comments' and 'Evidence Base' to enhance the learning process and provide easy reference to important supplementary material. Aimed primarily at specialty trainees and registrars in oncology, this text will appeal to all those healthcare professionals with an interest in oncology.