This book provides a comprehensive guide to oncoplastic breast-conserving surgery (OPBCS) for Asian patients with small- to medium-sized breasts. While OPBCS has developed rapidly worldwide, many techniques described in the literature were originally designed for Western patients with larger breast volumes. The text therefore focuses on practical surgical strategies that are particularly applicable to Asian patients, including skin-sparing and tissue-preserving approaches as well as techniques for maintaining breast symmetry.A central concept presented is the Step-Up Guide for oncoplastic breast-conserving surgery, developed through the academic activities of the Japan Oncoplastic Breast Surgery Society (JOPBS). This framework helps surgeons progressively adopt oncoplastic techniques in daily clinical practice, from basic procedures to more advanced reconstructive approaches. In addition, the book briefly introduces recent developments in related fields, including scarless latissimus dorsi breast reconstruction, nipple–areolar complex reconstruction, and endoscopic or robotic approaches in breast surgery. Many case studies are also presented, illustrating practical applications of oncoplastic techniques with photographs in diverse clinical settings.By integrating surgical knowledge with the educational experience accumulated through the activities of JOPBS, this book aims to serve as a valuable resource for surgeons and healthcare professionals seeking to deliver oncologically safe and aesthetically satisfying breast cancer surgery for Asian patients.
