Introduction

The vermiform appendix is considered by most to be a vestigial organ, its importance in surgery due only to its propensity for inflammation which results in the clinical syndrome known as acute appendicitis. Acute appendicitis is the most common cause of an ‘acute abdomen’ in young adults, and as such the associated symptoms and signs have become a paradigm for clinical teaching. Appendicitis is sufficiently common that appendicectomy (termed appendectomy in North America) is the most frequently performed urgent abdominal operation, and is often the first major procedure performed by a surgeon in training. Yet, despite extraordinary advances in modern radiographic imaging and diagnostic laboratory investigations, the diagnosis of appendicitis remains essen­tially clinical requiring a mixture of observation, clinical acumen and surgical science. In an age accustomed to early and accurate preoperative diagnosis, acute appendicitis remains an enigmatic challenge and a reminder of the art of surgical diagnosis.