Uncommon gastrointestinal diseases are a worrisome and challenging problem for gastroenterologists and GI Pathologists. In this book, the authors present research in the study of the epidemiology, management and prevention of uncommon gastrointestinal diseases (eg: isolated gastroduodenal Crohn's disease, primary lymphangiectasis of intestine, microscopic colitis, eosinophilic gastroenteritis, solitary rectal ulcer syndrome and primary splenic epithelial cysts). This book is definitely useful for gastroenterologists and GI pathologists for the diagnosis, treatment and prevention of these uncommon conditions.