The dissection of surgical specimens from the upper aero digestive tract is often difficult due to the anatomically complicated nature of this area. Local environ­ ment dictates routes of tumour spread and surgical margins at risk and these features differ for various subsites within this part of the body. Moreover, ade­ quate investigation of surgical specimens of the upper aero digestive tract requires knowledge of the various types of surgical procedures used for differ­ ent areas and should provide data that enable the surgeon to correlate preoper­ atively performed diagnostic imaging with the macroscopic findings obtained postoperatively. The aim of this book is to provide guidelines for the anatomical dissection of specimens from oral and sinonasal cavities, pharynx and larynx. This is done by illustrations that combine drawings of tumours at various anatomical subsites, details of the respective surgical procedures, the specimens thus obtained, and the way to dissect these specimens as shown by colour photographs of surgical specimens handled in the way schematically outlined. The book will be of benefit for pathologists, oral and maxillofacial surgeons, ENT surgeons and residents in training for these specialties. v Contents 1 Introduction . . . . . . . . . . . . . . . . . . . . 1 1 Head and Neck Specimens and Surgical Pathology 3 General Technical Notes 3 Anatomy 2 Oral Cavity . . . . . . 5 Anatomical Subregions 5 5 Lip ....