Histological Typing Of Odontogenic Tumours

Retaining the same scope as the first edition, this new edition deals with the classification and characteristics of tumours and tumour-like lesions. Similar information is also given on odontogenic and non-odontogenic cysts of the jaws. It is extensively illustrated with photomicrographs in colour, together with clinical radiographs and photographs of operation specimens to show the distinctive features of various lesions. The classification has been updated to reflect the present state of knowledge and changes in views, and includes a number of newly recognised entities.

Classifies and explains neoplasms and other tumours related to both the odontogenic apparatus and bone, epithelial cysts, and unclassified lesions.

This second edition updates the "WHO Classification of Endocrine Tumours" proposed in 1980 and incorporates many new tumour entities and pertinent concepts that have developed since that time. It is the result of a collaborative effort between 9 pathologists from different countries, in addition to informal contributions and discussions by many other colleagues. In particular, efforts have been made to integrate into the fundamental backbone of the histologic classification a number of prognostic and functional parameters now essential for appropriate diagnosis and clinicopathologic evaluation of endocrine tumours.

This classification is based primarily on the microscopic characteris tics of tumours. It is therefore concerned with the identification of cell types and histological patterns as seen by conventional light micro scopy. In general, time-honoured terms have been retained. Syn onyms are listed only if they have been widely used or if they are con sidered to be important for understanding the disease process. In such cases, the preferred term is given first, followed by the synonym in parentheses. The individuality of a tumour manifests itself principally in its histological appearance and the extent of spread at the time of diag nosis. This volume is concerned only with the histological classific ation of tumours. Anatomical extent or staging is covered in the TNM Classification.! The histological classification of a tumour de pends on two main parameters, typing and grading, and a number of additional parameters which may apply to selected examples. Histological Typing This divides tumours of a given organ into different types according to their direction of differentiation. Although this may frequently in dicate the underlying histogenesis of the tumour, it may be difficult or impossible to identify the cell of origin. Note is taken of the structure and function of cell types, as well as the overall growth pattern of the tumour, with the aim of matching these features to those of a normal tissue found in the same organ.

This book describes the epidemiologic, radiologic, and histopathologic features of presently known neoplasms and hamartomatous or tumor-like lesions arising from the tooth-forming structures, as well as a number of distinctive jaw lesions that must be distinguished from odontogenic tumors.

This book includes more clinical aspects and concentrates on cancer and precancer of the oral mucosa rather than attempting to cover all benign and malignant tumours of the oral and oropharyngeal tissue. One main emphasis is the significance of the clinical features of the various lesions discussed. Attention is also drawn to those conditions particular to the oral mucosa that may give rise to appearances which are important in differential diagnoses but can be misleading to those who do not have detailed knowledge of the tissue involved. The TNM-classification for malignant tumours of the lip and oral cavity is also included.

The WHO Classification of Head and Neck Tumours is the ninth volume in the 4th Edition of the WHO series on histological and genetic typing of human tumors. This authoritative, concise reference book provides an international standard for oncologists and pathologists and will serve as an indispensable guide for use in the design of studies evaluating response to therapy and clinical outcome. Diagnostic criteria, pathological features, and associated genetic alterations are described in a disease-oriented manner. Sections on all recognized neoplasms and their variants include new ICD-O codes, epidemiology, clinical features, macroscopy, pathology, genetics, and prognosis and predictive factors. The book, prepared by 135 authors from 35 countries, contains more than 600 color images and tables, and more than 2700 references. This book is in the series commonly referred to as the "Blue Book" series.