Despite significant progress in modern gastroenterology, the aetiology of inflammatory bowel disease as well as coeliac disease is still to a great extent unknown and poorly understood. The principles of treatment - particularly of IBD - emphasize the importance of a combined medical and surgical approach. This book is the proceedings of an international symposium that brought together workers from many disciplines involved in the treatment of IBD and coeliac disease, and is a useful update on recent advances in paediatric and paediatric-surgical gastroenterology. F. Hadziselimovic, B. Herzog, A. Biirgin-Wolff vii List of Principal Contributors M. BUROELSKI F. HAOZISELIMOVIC Kinderklinik Department of Gastroenterology Medizinische Hochschule Hannover Basler Kinderspital Postfach 61 01 80 Rbmergasse 8 CH-4005 Basel 0-3000 Hannover 61 Switzerland FRG H. K. HARMS A. BURGIN-WOLFF Dr. V. Hauner'sches Kinderspital Basler Kinderspital Lindwurmstrasse 4 Rbmergasse 8 0-8000 Munich 2 CH-4005 Basel FRG Switzerland A. H. CO LOONY W. T. J. HEKKENS Department of Physiology Harvard Medical School Faculty of Medicine Division of Urology The Children's Hospital University of Leiden 300 Longwood Avenue Wassenaarseweg 62 Boston, MA 02115 PO Box 9604 NL-2300 RC Leiden USA The Netherlands C. P. FLIEGEL Department of Radiology B. HERZOG Basler Kinderspital Pediatric Surgery Rbmergasse 8 Basler Kinderspital CH-4005 Basel Rbmergasse 8 Switzerland CH-4005 Basel Switzerland J. -O. GEBBERS Institute of Pathology B. S. KIRSCHNER Kantonsspital Wyler Children's Hospital CH-6000 Luzern 16 5825 S. Maryland Avenue Switzerland Chicago, IL 60637 USA A. M. GRIFFITHS Division of Gastroenterology M. L.