Practical Equine Dermatology. David H. Lloyd
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Limit of Liability/Disclaimer of Warranty The contents of this work are intended to facilitate diagnosis and treatment by veterinary practitioners of diseases of equine skin. In view of ongoing research, equipment modifications, changes in governmental regulations, and the constant flow of information relating to the use of medicines, equipment, and devices, the reader is urged to review and evaluate the information provided in the package insert or instructions for each medicine, equipment, or device for, among other things, any changes in the instructions or indication of usage and for added warnings and precautions. While the publisher and authors have used their best efforts in preparing this work, they make no representations or warranties with respect to the accuracy or completeness of the contents of this work and specifically disclaim all warranties, including without limitation any implied warranties of merchantability or fitness for a particular purpose. No warranty may be created or extended by sales representatives, written sales materials or promotional statements for this work. The fact that an organization, website, or product is referred to in this work as a citation and/or potential source of further information does not mean that the publisher and authors endorse the information or services the organization, website, or product may provide or recommendations it may make. This work is sold with the understanding that the publisher is not engaged in rendering professional services. The advice and strategies contained herein may not be suitable for your situation. You should consult with a specialist where appropriate. Further, readers should be aware that websites listed in this work may have changed or disappeared between when this work was written and when it is read. Neither the publisher nor authors shall be liable for any loss of profit or any other commercial damages, including but not limited to special, incidental, consequential, or other damages.
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[PB: ISBN: 9781119765486]
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Cover Image: © Janet D. Littlewood, Kieran O’Brien
Preface to the second edition
This second edition of Practical Equine Dermatology updates the text of the first edition and provides information on a number of new diseases. Although much of the information has not changed, it has provided the opportunity to increase greatly the number of illustrations whilst focusing the text more closely on diseases of the skin. Thus, diseases of the foot and associated structures have now been incorporated within the other problem‐orientated chapters, and conditions that are primarily orthopaedic have been omitted. In addition, suggested references and further reading are presented at the end of each chapter in order to make them more readily accessible to the reader, rather than as a single block at the end of the book.
As before, the aim has been to provide a concise, problem‐orientated text facilitating a well‐organised diagnostic approach together with a basic presentation of equine dermatology in a practical format illustrated with pictures of the principal conditions, particularly those in which visual information is an important part of diagnosis. All of the conditions likely to be encountered in the UK are included, and information on some rarer conditions, such as those that may occur in imported horses, is also provided. However, detailed information on rare and complex diseases is not included as it is anticipated that such conditions will require referral to a specialist in equine dermatology.
Indications for treatment are given within the text. These are generally based on UK practice and on products available within the UK. Where unlicensed preparations are mentioned, readers should understand that these should be used only when licensed products are not available and that efficacy and safety of unlicensed products and ‘off‐label’ use cannot be guaranteed. Issues relating to drug use in horses are considered in the final chapter on Therapy in Equine Dermatology.
This edition has been revised principally by Janet Littlewood and David Lloyd, with assistance by Mark Craig. Sadly, ‘Tommy’ Lovell Thomsett, who was a pioneer of equine dermatology in the UK, has passed away. However, his knowledge and wisdom remain as an important component of the book.
The authors hope that this text will not only provide practical help on the everyday problems of skin disease in equine practice but that it will also stimulate a deeper interest in equine dermatology.
Janet D. Littlewood
David H. Lloyd
J. Mark Craig
March 2021
Acknowledgements
The authors would like to acknowledge colleagues at Rossdales Equine Hospital and Practices for their generosity in contributing images and for support and advice during the preparation and updating of this edition of the book. They relied on the Royal Veterinary College Dermatology Group slide collection and also wish to acknowledge in particular contributions from the late Dr Keith Barnett, Dr Malcolm Brearley, Dr Harriet Brooks, Mr Andrew Browning, Dr Greg Burton, Dr Alistair Cox, Ms. K. Clarke, Dr Emily Floyd, Dr Marcus Head, Dr Sandeep Johnson, Dr Ewan Macauley, Professor Celia Marr, Mrs Jacqueline Mortimer, Dr Kieran O’Brien, Dr Richard Payne, Dr Rob Pilsworth, Dr Oliver Pynn, Dr Stephen Shaw, and Dr Liz Stevens.
Disclaimer
While every care has been taken by the authors and publisher to ensure that the drug uses, dosages and information in this book are accurate, errors may occur and readers should refer to the manufacturer or approved labelling information for additional information.
Readers should also note that this text includes information on drugs that are not licensed for use in horses. Readers should therefore check manufacturers’ product information before using such drugs.
1 The diagnostic approach
A structured approach is essential. Vital information is obtained during the history‐taking process and sufficient time must be allowed for this. Accurate information on husbandry is particularly important. Clinical examination must include systemic and skin components. The process is illustrated with flow diagrams (Figures 1.1 and 1.2).
TAKING THE HISTORY
The approach (Figure 1.1) is similar to that adopted in other species.Points to include are:
Breed, age, sex, origin:Consider these aspects carefully; in many conditions, these simple