Contributors. Foreword. Introduction. Principles of Dermoscopy and Dermoscopic Equipment. Histopathologic Correlations of Dermoscopic Structures. Primary Diagnostic Algorithms: Pattern Analysis Revised. Primary Diagnostic Algorithms: Top-Down 2-Step Pattern Analysis Algorithm. Primary Diagnostic Algorithms: A Decision Algorithm for Nonpigmented Skin Lesions. Triage Algorithms: A Decision Algorithm for Pigmented Lesions Based on Revised Pattern Analysis ("Chaos and Clues"). Triage Algorithms: Triage Amalgamated Dermoscopy Algorithm (TADA). Triage Algorithms: Other Dermoscopic Algorithms in Skin Cancer Triage. Nonmelanocytic lesions: Dermatofibroma. Nonmelanocytic Lesions: Basal Cell Carcinoma. Nonmelanocytic Lesions: Actinic Keratosis. Nonmelanocytic Lesions: Actinic Keratosis, Bowen's Disease, Keratoacanthoma, and Squamous Cell Carcinoma. Nonmelanocytic Lesions: Solar Lentigines, Seborrheic Keratoses, and Lichen Planus-Like Keratosis. Nonmelanocytic Lesions: Vascular Lesions. Nonmelanocytic Lesions: Clear Cell Acanthoma, Poroma, Sebaceous Hyperplasia, and Other Adnexal Neoplasms. Benign Melanocytic Lesions: Congenital Melanocytic Nevi. Benign Melanocytic Lesions: Melanocytic Nevi. Benign Melanocytic Lesions: Intradermal Nevus. Benign Melanocytic Lesions: Blue Nevi and Variants. Benign Melanocytic Lesions: Spitz and Reed Nevi. Benign Melanocytic Lesions: Other Nevi. Melanocytic Lesions: Superficial Spreading Melanomas. Melanocytic Lesions: Nodular Melanoma. Melanocytic Lesions: Lentigo Maligna or Lentiginous Melanoma on Sun-Damaged Skin. Melanocytic Lesions: Acrolentiginous Melanoma. Melanocytic Lesions: Other Melanoma Subtypes. Melanocytic Lesions: Amelanotic and Hypomelanotic Melanoma. Methods to Differentiate Nevi from Melanoma: Pattern Analysis and Melanoma-Specific Criteria. Methods to Differentiate Nevi from Melanoma: Rules and Algorithms. Methods to Differentiate Nevi from Melanoma: Rules to Avoid Missing a Melanoma. Methods to Differentiate Nevi from Melanoma: Methods to Improve Sensitivity and Specificity in Melanoma Diagnosis. Collision Tumors and Exceptions to Rules: False Positive and False Negative. Special Locations: Face. Special Locations: Palms and Soles (Volar Surface). Special Locations: Mucosal Surfaces and Glabrous Skin on Glans and Labia. Special Locations: Nails. Special Locations: Hair and Scalp (Trichoscopy). Dermoscopy in General Dermatology: Infectious Diseases. Dermoscopy in General Dermatology: Inflammatory Dermatoses (Inflammoscopy). Digital Monitoring: Short- and Long-Term. Index.