Dermatoscopy A-Z

"All dermatologists and family physicians will want to have access to this text as an invaluable guide to the current practice of Dermoscopy, a quick and painless method of examining a patient's skin, hair, or nails, that has extended beyond screening for skin cancer to becoming a useful tool for quick diagnosis of a number of conditions and monitoring their treatment. Key Features: features use of dermoscopy in a comprehensive range of conditions; features a wealth of illustrative dermoscopic images; presents material in a practical ratio of images to text"-- Provided by publisher Cover 1 Half Title 2 Title Page 4 Copyright Page 5 Dedication 6 Contents 8 Preface 12 1. Introduction to Dermatoscopy 14 1.1 Device 14 1.2 Basic Parameters 14 1.2.1 Colors 14 1.2.2 Basic Structures 18 1.3 Light Modes 26 Bibliography 28 2. Nevi 30 2.1 Common Nevi 32 2.1.1 Nevi of Trunk and Extremities 32 2.1.2 Scalp Nevi 37 2.1.3 Facial Nevi 37 2.1.4 Acral Nevi 37 2.1.5 Subungual Nevi 41 2.1.6 Mucosal Nevi 41 2.2 Spitz and Reed Nevi 42 2.2.1 Vessels and White Network (Nonpigmented Spitz Nevus) 42 2.2.2 Globules and White Network (Pigmented Spitz Nevus) 43 2.2.3 Starburst Pattern (Reed Nevus) 43 2.3 Blue Nevi 45 2.4 Special Nevus Types 46 2.4.1 Traumatized Nevus (Targetoid Hemosiderotic Nevus) 46 2.4.2 Eczematous Nevus (Meyerson Nevus) 46 2.4.3 Halo Nevus (Sutton Nevus) 46 2.4.4 Balloon Cell Nevus 48 2.4.5 Sclerosing Nevus (with Pseudomelanoma Features) 49 2.4.6 Recurrent Nevus 49 Bibliography 49 3. Melanoma 52 3.1 Conventional Melanoma 53 3.1.1 Melanoma of the Trunk and the Extremities 53 3.1.2 Facial Melanoma 61 3.1.3 Acral Melanoma 65 3.1.4 Subungual Melanoma 69 3.1.5 Mucosal Melanoma 73 3.2 Nodular Melanoma 76 3.3 Amelanotic Melanoma 79 Bibliography 83 4. Benign Nonmelanocytic Skin Tumors 88 4.1 Epithelial Skin Tumors 88 4.1.1 Solar Lentigo 88 4.1.2 Ink-Spot Lentigo 88 4.1.3 Seborrheic Keratosis 90 4.1.4 Lichen Planus–Like Keratosis 93 4.2 Vascular Tumors 93 4.2.1 Cherry Angioma 93 4.2.2 Angiokeratoma 94 4.2.3 Pyogenic Granuloma 94 4.2.4 Subcorneal and Subungual Hemorrhage 94 4.3 Tumors of the Fibrous Tissue 95 4.3.1 Dermatofibroma 95 4.4 Common Adnexal Tumors 97 4.4.1 Sebaceous Hyperplasia 97 4.4.2 Eccrine Poroma 97 4.5 Clear Cell Acanthoma 99 Bibliography 99 5. Malignant Nonmelanocytic Tumors 102 5.1 Basal Cell Carcinoma 102 5.1.1 Dermatoscopy and Histopathologic Subtype 103 5.1.2 Dermatoscopy and Response to Treatment 107 5.2 Keratinocyte Skin Cancer 109 5.2.1 Actinic Keratosis 109 5.2.2 Intraepidermal Carcinoma or Bowen’s Disease 112 5.2.3 Squamous Cell Carcinoma 113 5.2.4 Dermatoscopic Model of the Progression from Actinic Keratosis into Squamous Cell Carcinoma 117 5.3 Basosquamous Carcinoma 118 5.4 Merkel Cell Carcinoma 119 5.5 Atypical Fibroxanthoma and Malignant Fibrous Histiocytoma 120 5.6 Malignant Vascular Tumors 120 5.6.1 Kaposi Sarcoma 120 5.6.2 Angiosarcoma 121 Bibliography 121 6. Inflammatory Skin Diseases 124 6.1 Psoriasis 124 6.2 Dermatitis 126 6.3 Lichen Planus 126 6.4 Pityriasis Rosea 128 6.5 Discoid Lupus Erythematosus 129 6.6 Lichen Sclerosus and Morphea 130 6.7 Granulomatous Skin Diseases 130 6.7.1 Sarcoidosis and Lupus Vulgaris 131 6.7.2 Necrobiosis Lipoidica and Granuloma Annulare 131 6.8 Rosacea 132 6.9 Porokeratosis 134 6.10 Urticaria and Urticarial Vasculitis 134 6.11 Mastocytosis 135 6.12 Pigmented Purpuric Dermatoses 135 6.13 Pityriasis Rubra Pilaris 135 6.14 Pityriasis Lichenoides et Varioliformis Acuta 136 6.15 Prurigo Nodularis 136 6.16 Acquired Perforating Dermatoses 137 6.17 Grover’s Disease and Darier Disease 137 6.18 Mycosis Fungoides 138 6.19 Lymphomatoid Papulosis 139 Bibliography 139 7. Infectious Skin Diseases 144 7.1 Parasitoses 144 7.1.1 Scabies 144 7.1.2 Pediculosis 144 7.2 Viral Infections 147 7.2.1 Molluscum Contagiosum 147 7.2.2 Human Papillomavirus Infections 149 7.3 Other Infections 152 7.3.1 Tick Bites 152 7.3.2 Demodicosis 152 7.3.3 Leishmaniasis 153 7.3.4 Tinea Corporis 154 Bibliography 154 8. Trichoscopy 156 8.1 Noncicatricial Alopecias 157 8.1.1 Androgenetic Alopecia (Male and Female Pattern Hair Loss) 157 8.1.2 Alopecia Areata 160 8.1.3 Trichotillomania 164 8.1.4 Tinea Capitis 166 8.2 Primary Cicatricial Alopecias 167 8.2.1 Lichen Planopilaris 167 8.2.2 Discoid Lupus Erythematosus 169 8.2.3 Folliculitis Decalvans 171 8.2.4 Dissecting Cellulitis of the Scalp 172 8.3 Trichoscopy in Children 172 8.3.1 Temporal Triangular Alopecia 172 8.3.2 Loose Anagen Hair Syndrome 173 8.3.3 Aplasia Cutis 173 8.4 Hair Shaft Deformities 174 8.4.1 Monilethrix 174 8.4.2 Pseudomonilethrix or Pohl-Pinkus Constrictions 174 8.4.3 Trichorrhexis Nodosa 174 8.4.4 Trichorrhexis Invaginata 175 8.4.5 Trichoptilosis 176 8.4.6 Trichoschisis 176 8.4.7 Pili Torti 176 8.4.8 Pili Annulati 177 Bibliography 177 9. Special Clinical Scenarios 182 9.1 Pigmented Macules on the Face 182 9.2 Diagnosis and Management of Spitzoid-Looking Lesions 189 9.3 Management of Patients with Multiple Common Nevi and/or Clinically Atypical Nevi 195 9.4 Seven Rules to Not Miss Melanoma 199 Bibliography 203 Index 204 This text will be an invaluable guide for all wanting to get up to speed with Dermoscopy, a quick and painless method of examining a patient's skin, hair, or nails, that has extended beyond screening for skin cancer to becoming a useful tool for quick diagnosis of a number of conditions and monitoring their treatment.