The aim of this book is to incorporate the updated information and concise description of Giant cell lesions with current concepts and contemporary information for readers.

Each book provides the opportunity to add some recent development and progress in the field of Oral Pathology and Microbiology. We realize that there will always be some area that will not be addressed as thoroughly as some readers would like, but we have tried to be as comprehensive as possible.

We apologize in advance for any areas that we did not cover thoroughly as our readers would have liked. Our chapter contributors have again done a remarkable job. Their expertise is exhibited by the excellent coverage of their assigned topics.