This volume builds upon the work of its predecessor by liberally illustrating the spectrum of each tumour and disease described, whilst providing many new illustrations. Morphometry, flow cytometry, immunohistochemistry, gene rearrangement studies, and other molecular biologic methodologies are exciting new areas that are being developed into diagnostic procedures in the pathology laboratory. Where these methodologies are applicable to salivary gland disease, they are included. Histomorphologic evaluation, however, remains the principal and most useful method for diagnosis of salivary gland tumors and is the emphasis of this edition. A differential diagnosis is included in the discussion of most tumours, and the cytopathologic features of those tumours most commonly encountered in the cytopathology laboratory are discussed.