Hair Loss Disorders in Domestic Animals (eBook)

The Editors: Lars Mecklenburg, DVM, PhD, Cert. Vet. Pathologist, is an independent consultant in veterinary pathology in Hamburg, Germany. Monika Linek, DVM, DECVD, is Head of the Dermatology Referral Service at Veterinary Specialists of Hamburg in Hamburg, Germany. Desmond J. Tobin, PhD, FRCPath, FIBiol, is Professor of Cell Biology at the Centre for Skin Sciences, School of Life Sciences, University of Bradford in Bradford, West Yorkshire, Great Britain

Foreword v

Preface vii

Contributors ix

Part 1 Hair Follicle Biology

1.1 Ontogeny of the hair follicle 3
Desmond J. Tobin

1.2 Anatomy and physiology of the hair follicle 17
Desmond J. Tobin

1.3 Hair follicles in domesticated mammals with comparison to laboratory animals and humans 43
Wilfried Meyer

Part 2 How to Approach Alopecic Diseases

2.1 Clinical aspects 65
Monika Linek

2.2 Histopathological aspects 77
Lars Mecklenburg

Part 3 Non-Inflammatory Alopecias

3.1 Congenital alopecia 93
Lars Mecklenburg

3.2 Trichomalacia 115
Lars Mecklenburg

3.3 Disorders of hair follicle cycling 119

3.3.1 Hypothyroidism 119
Monika Linek

3.3.2 Hyperadrenocorticism 132
Rosario Cerundolo

3.3.3 Canine hyperestrogenism 142
Lars Mecklenburg

3.3.4 Canine alopecia X 148
Linda Frank

3.3.5 Canine recurrent flank alopecia 155
Manon Paradis

3.3.6 Telogen effluvium 161
Rosario Cerundolo

3.3.7 Canine postclipping alopecia 163
Rosario Cerundolo

3.3.8 Canine pattern alopecia 164
Manon Paradis

3.3.9 Breed-specific canine hair cycle abnormalities 169
Rosario Cerundolo, Manon Paradis, and Lars Mecklenburg

3.4 Hair follicle dystrophy and atrophy 177
Rosario Cerundolo and Lars Mecklenburg

3.5 Traumatic alopecia 185
Monika Linek

3.6 Scarring alopecia 189
Lars Mecklenburg

Part 4 Inflammatory Alopecias

4.1 Folliculitis with intraluminal organisms 193
Monika Linek

4.2 Eosinophilic folliculitis 215
Monika Linek

4.3 Pustular folliculitis 221
Monika Welle

4.4 Lymphocytic mural folliculitis 227
Monika Welle

4.5 Histiocytic or granulomatous mural folliculitis 243
Monika Welle and Lars Mecklenburg

4.6 Necrotizing mural folliculitis 249
Monika Linek and Lars Mecklenburg

4.7 Alopecia areata 253
Desmond J. Tobin

4.8 Sebaceous adenitis 269
Monika Linek

Index 273

"It is an excellent addition to the library of any board-certified
veterinary dermatologist, resident in a veterinary dermatology
program, and veterinary clinician with a special interest in
companion animal dermatology." (Vet Med Today, 15 June 2010)

"Hair Loss Disorders in Domestic Animals is the first
book to exhaustively review a subject that is such a common
clinical problem. This book is well organized and easy to read. It
initially provides a concise, understandable review of hair
follicle biology that is essential for understanding the
pathogenesis of alopecic disorders, including excellent
descriptions and histologic images of hair follicle anatomy and
development." (Vet Med Today, August 2010)

"Provides a concise, understandable review of hair follicle
biology that is essential for understanding the pathogenesis of
alopecic disorders, including excellent descriptions and histologic
images of hair follicle anatomy and development. This book
contains an accumulation of essential, current information about
alopecic disorders in animals that is not easily accessible from
other sources. It is an excellent addition to the library of any
board-certified veterinary dermatologist, resident in a veterinary
dermatology program, and veterinary clinician with a special
interest in companion animal dermatology." (JAVMA, June
2010)

"This book is a delight. It is beautifully illustrated and
concisely written. Not only does it provide much practical
information but it makes a positive contribution to the
discipline." (Veterinary Record, March 2010)

"The editors and authors have done an excellent job of
summarizing current theories of hair follicle development and
function and presenting the most current information on hair loss
disorders affecting domestic animals. ... This is the first book to
present such detailed information. ... As such, it is a much needed
textbook." (Doody's, April 2010)

"This resource would be a worthy addition to the practice
library, and very valuable to anyone tackling a dermatology module
for the RCVS CertAVP. For someone embarking on a dermatology
diploma, this text is worth it for the hair follicle biology
chapter alone." (Veterinary Times, August 2010)