CONTENTS Section 1 General Introduction 1 Chapter 1 Structure of Skin 1 Chapter 2 Structure of Skin Lesions and Fundamentals of Clinical Diagnosis 7 Chapter 3 Basic Pathologic Reaction of the Skin 15 Chapter 4 Therapeutics 21 Section 2 T-cell Dysregulation Inflammatory Disorders 45 Chapter 1 Allergic Contact Dermatitis 45 Chapter 2 Atopic Dermatitis 53 Chapter 3 Lichen Simplex Chronicus 62 Chapter 4 Prurigo Nodularis 63 Chapter 5 Psoriasis 65 Chapter 6 Lichen Planus 74 Chapter 7 Seborrheic Dermatitis 86 Section 3 Inflammatory Diseases Based on Neutrophils and Eosinophils 90 Chapter 1 Acute Febrile Neutrophilic Dermatosis (Sweet Syndrome) 90 Chapter 2 Hypereosinophilic Syndrome 95 Section 4 Abnormal Humoral Reactivity Inflammatory Disorders 99 Chapter 1 Urticaria and Angioedema 99 Chapter 2 Pityriasis Rosea 109 Chapter 3 Erythema Multiforme 113 Chapter 4 Epidermal Necrolysis (Stevens–Johnson Syndrome and Toxic Epidermal Necrolysis) 118 Chapter 5 Cutaneous Reactions to Drugs 126 Section 5 Bullous Disorders 133 Chapter 1 Pemphigus 133 Chapter 2 Bullous Pemphigoid 142 Section 6 Disorders of Skin Appendages 148 Chapter 1 Acne Vulgaris 148 Chapter 2 Rosacea 155 Chapter 3 Alopecia Areata 160 Chapter 4 Androgenetic Alopecia 163 Section 7 Disorders of Skin Appendages 166 Chapter 1 Lichen Sclerosus 166 Section 8 Disorders of Melanocytes 170 Chapter 1 Vitiligo 170 Chapter 2 Melasma 174 Chapter 3 Nevus of Ota 176 Section 9 Disorders Due to the Environment 178 Chapter 1 Sunburn 178 Chapter 2 Polymorphic Light Eruption 180 Chapter 3 Frostbite 182 Section 10 Metabolic Disorders 185 Chapter 1 Primary Cutaneous Amyloidosis 185 Chapter 2 Xanthomatoses 186 Section 11 Psychocutaneous Skin Diseases 190 Chapter 1 Delusions of Parasitosis 190 Chapter 2 Dermatitis Artefacta 192 Section 12 Hereditary Disorders 194 Chapter 1 The Ichthyoses 194 Chapter 2 Inherited Epidermolysis Bullosa 204 Chapter 3 The Neurofibromatoses 213 Chapter 4 Darier Disease 216 Chapter 5 Hailey-Hailey Disease 220 Section 13 Connective Tissue Diseases 222 Chapter 1 Lupus Erythematosus 222 Chapter 2 Dermatomyositis 233 Chapter 3 Scleroderma 241 Chapter 4 Sj.gren’s Syndrome 252 Section 14 Inflammatory Vascular Disorders and Panniculitis 258 Chapter 1 Henoch–Sch.nlein Purpura 258 Chapter 2 Pigmented Purpuric Dermatoses 260 Chapter 3 Beh.et Disease 263 Chapter 4 Panniculitis 269 Section 15 Skin Neoplasia 273 Chapter 1 Seborrheic Keratosis 273 Chapter 2 Capillary Malformation and Infantile Hemangiomas 274 Chapter 3 Pyogenic Granuloma 283 Chapter 4 Keloid 284 Chapter 5 Actinic Keratoses 286 Chapter 6 Bowen Disease 291 Chapter 7 Basal Cell Carcinoma 294 Chapter 8 Squamous Cell Carcinoma 299 Chapter 9 Mammary and Extramammary Paget’s Disease 307 Chapter 10 Nevomelanocytic Nevi 310 Chapter 11 Cutaneous Melanoma 315 Chapter 12 Mycosis Fungoides 335 Section 16 Bacterial Diseases 341 Chapter 1 Impetigo 341 Chapter 2 Folliculitis, Furuncles and Carbuncles 345 Chapter 3 Erysipelas 347 Chapter 4 Tuberculosis 350 Chapter 5 Leprosy 353 Section 17 Fungal Diseases 360 Chapter 1 Tinea Capitis 360 Chapter 2 Tinea Corporis 364 Chapter 3 Tinea Cruris 367 Chapter 4 Tinea Pedis and Tinea Manuum 368 Chapter 5 Onychomycosis 370 Chapter 6 Tinea (Pityriasis) Versicolor 372 Chapter 7 Sporotrichosis 375 Section 18 Viral Disease 377 Chapter 1 Herpes Simplex 377 Chapter 2 Varicella and Herpes Zoster 379 Chapter 3 Molluscum Contagiosum 383 Chapter 4 Common Warts and Verruca Plana 385 Section 19 Infestations 389 Chapter 1 Scabies 389 Chapter 2 Pediculosis 391 Chapter 3 Arthropod Bites and Stings 394 Section 20 Sexually Transmitted Diseases 397 Chapter 1 Syphilis 397 Chapter 2 Genital Herpes 410 Chapter 3 Gonorrhea 413 Chapter 4 Mycoplasma and Chlamydia Infection 418 Chapter 5 Human Papilloma Virus Infections 420 Chapter 6 Cutaneous Manifestations of HIV Infection 433