"The Foundations in Diagnostic Pathology Series" answers the call for fresh, affordable, and easy-to-use guidance. Each region-specific volume provides all of the most essential information on the pathologic entities encountered in practice. This volume examines the full scope of neoplastic and non-neoplastic disorders of the gastrointestinal tract (esophagus, stomach, small intestine, appendix, colon, and anus), liver, gallbladder, extrahepatic biliary tract, and pancreas. Coverage includes: clinical features - gross and microscopic; pathologic features; ancillary studies; differential diagnoses prognostic and therapeutic considerations; and, bibliographic references to the most important literature on the topic. The highly templated, practical format with a wealth of helpful illustrations, boxes, and tables, make this series ideal for quick reference.