Collectively, cancer of the esophagus, stomach and small intestine represent the second most common site and cause of death amongst the digestive system cancers. These disparate malignancies have one thing in common: consistently effective treatment remains elusive. This book is a comprehensive guide to diagnosis, management, and post-treatment care. Epidemiologic factors, molecular and biologic determinants, diagnostic/staging methods and treatment modalities are described for each organ site. The text is thoroughly supported by color illustrations, a key feature of the American Cancer Society Atlas of Clinical Oncology series. The expert contributors from medical, surgical and radiation oncology examine the advances in imaging, interventional gastroenterology, surgical technique, and combined modality therapy and discuss their impact in the management of this challenging group of cancers.