The primary aim of this book is to provide guidance in the study of histologic slides of the pathology course. For this reason we are following the outlines of the pathology course; the topic is divided into two parts, a general and a special pathology section. The book also presents examples of histologic slides which are part of the pathology course for medical and dental students. We are introducing pathologic entities which are characteristic and should assist in more effective learning of the theoretical part of the course. However, space does not permit the presentation of many important lesions. The explanatory text includes the definition of individual pathologic entities, a brief description of the gross findings followed by an analysis of the m icroscopic changes, sometimes in greater detail than seen on the microphotographs