ABSTRACT
Surgical management of ear disease cannot be divorced from the medical necessity of fully investigating all the components of the otic structure and recognizing that the epithelial lining of the external ear canal is an extension of the skin of the head and neck. Chronic otitis externa, at least in the dog, is usually a manifestation of a more generalized dermatological process such as a defect in keratinization, hypersensitivity, endocrinopathy, or an immune-mediated disease. Furthermore, many cases are asso - ciated with otitis media. These diseases and associated problems must all be fully investigated before surgery is contemplated. Clinicians are urged to read the relevant chapters and sections of this book for further information.
