Edited by:

Iris Zalaudek, MD, Division of Dermatology and Venerology, Medical University of Graz, Austria

Giuseppe Argenziano, MD, Skin Cancer Unit, Arcispedale S. Maria Nuova IRCCS Reggio Emilia, Italy

Jason Giacomel, MBBS, Skin Spectrum Medical Services, Perth, Australia

TECHNICAL ASPECTS. Physics of Polarized and Nonpolarized Dermoscopy and Digital Photography. Instrument-Dependent Criteria. Metaphoric and Descriptive Language in Dermoscopy: Lessons fromthe Cognitive Sciences.How to Perform Dermoscopy of Non-Pigmented Skin Lesions. DERMATOSCOPY OF NON-PIGMENTED LESIONS. How to Assess a Given Non-Pigmented Lesion. Clinical Assessment. Vascular Morphologies. Vascular Arrangements. Specific Patterns. Dermatoscopic Clues in Non-Pigmented Lesions. The Influence of Tumor Thickness on the Vascular Morphologies. SPECIFIC DERMATOSCOPIC PATTERNS AND THEIR DIAGNOSTIC SIGNIFICANCE. Intradermal Nevi (Including Unna and Miescher Type). Clark Nevi in Fair Skin Types. Spitz Nevi. Atypical Spitzoid Neoplasms (Atypical Spitz Nevi, Atypical Spitz Tumors, Spitzoid Melanoma): a Clinicopathological Update. Nevi in Patients With Bap1 Germ Line Mutation, Red-Hair Polymorphism, and Albinism. Amelanotic Melanoma. Hypomelanotic Melanoma. Cutaneous Melanoma Metastases. Sebaceous Hyperplasia. Seborrheic Keratosis. Dermatofibromas. Angioma, Pyogenic Granuloma, Angiokeratoma. Benign Adnexal Lesions. Basal Cell Carcinoma. Keratinocyte Skin Cancer. Dermoscopy of Cutaneous Neuroendocrine ("Merkel cell") Carcinoma. Malignant Vascular, Adnexal, and Fibrous Tissue Tumors. Clues for the Differential Diagnosis of Inflammatory Lesions from Tumoral Lesions. Dermoscopy for Assessing Surgical Margins. Dermoscopy in the Treatment Decision (Surgical vs. Topical). Dermoscopy for Treatment Monitoring (Recurrence vs. Clearance). Diagnostic Clues and Management Rules. Confocal Microscopy in the Diagnosis and Management of Non-Pigmented Skin Tumors (Which, When, and When Not).