This text discusses clinical endocrinology, a field requiring the combination of broad pathophysiological interest and specific expertise in the field of endocrinology, thereby occupying a common ground between biochemistry, physiology and clinical medicine. In the majority of cases the clinician's notion of the presence of an endocrine disease is largely based upon pattern recognition, in which physical changes play an important role. Therefore many colour illustrations have been included throughout the text. In addition there are many full-colour graphs and illustrations of diagnostic imaging and pathology. With over 350 illustrations the book represents an illustrated text on the diseases of endocrine glands. For each gland there is an introductory section on the relevant morphology and physiology, followed by descriptions of the disorders of the gland. When endocrine diseases are quite different in dogs and cats, separate descriptions are given for these species. Protocols for function tests and emergency treatments are presented in the last chapters.