The second volume provides a comprehensive and visually intuitive atlas of normal anatomical variations of the arterial, venous, and lymphatic systems throughout the body. Covering the cerebrovascular, thoracic, abdominal, and pelvic vasculature, it presents a wide spectrum of vascular variants that may mimic pathological findings or affect diagnostic interpretation, interventional procedures, and surgical planning. The variants are primarily demonstrated using two-dimensional (2D) and three-dimensional (3D) volume-rendered computed tomography (CT) and magnetic resonance imaging (MRI).

Designed for radiologists, surgeons, anatomists, and embryology researchers, this volume facilitates accurate recognition of vascular anatomy and its variations, helping to avoid diagnostic pitfalls and procedure-related complications. It serves as a practical reference for image interpretation, interventional radiology, endovascular treatment, and complex surgical procedures.

Featuring thousands of high-quality color images and 3D reconstructions, the atlas illustrates both common and exceptionally rare vascular configurations, many of which are seldom depicted in conventional anatomical references. Color-coded three-dimensional vascular renderings provide outstanding anatomical clarity and spatial understanding, making this volume an indispensable resource for clinical practice, education, and research. By improving recognition of anatomical diversity, it supports personalized patient care and advances modern diagnostic and therapeutic approaches.

Toshihide Yamaoka, MD, PhD, has been the Director of the Department of Diagnostic Imaging and Interventional Radiology at Kyoto Katsura Hospital for over 10 years. He graduated from Kyoto University and completed his radiology residency at Kyoto City Hospital. Dr. Yamaoka has authored over 30 peer-reviewed articles and contributed to five book chapters. He has extensive experience reviewing and publishing manuscripts and books on thoracic congenital vascular anomalies and normal variants involving the portal vein, umbilical artery, and ligamentum teres, with over 20 years of clinical practice in interventional radiology and experience with numerous cases where normal variants affected clinical decisions. Since the year he joined Katsura Hospital, he has mentored more than 100 junior residents. It is noteworthy that the summary notes of the morning conferences with the residents have been presented as a review article in the Japanese Journal of Radiology. He has also been awarded honors, including the Cum Laude and Certificate of Merit at the Radiological Society of North America (RSNA) and the Magna Cum Laude at the European Congress of Radiology. He is a full member of Sigma Xi and active in professional societies such as the RSNA and the Japanese College of Radiology.