This book is a pocket guide to the science and practice of PET/CT imaging of esophageal and gastric malignancies. The scientific principles of PET/CT, the radiopharmaceuticals used in this context, the role of PET/CT, the characteristic PET/CT findings, and limitations and pitfalls are all clearly described. In addition, information is provided on epidemiology, clinical presentation, diagnosis, staging, pathology, management, and radiological imaging. The book is published within the Springer series Clinicians’ Guides to Hybrid Imaging, which is aimed at referring clinicians, nuclear medicine/radiology physicians, radiographers/technologists, and nurses who routinely work in nuclear medicine and participate in multidisciplinary meetings. Compiled under the auspices of the British Nuclear Medicine Society, the series is the joint work of many colleagues and professionals worldwide who share a common vision and purpose in promoting and supporting nuclear medicine as an important imaging specialty for the diagnosis and management of oncological and non-oncological conditions.