• Alopecia
• Acniform eruptions
• Benign tumors
• Bullous diseases
• Dermoscopy
• Nevi, melanoma
• Nonmelanoma cancer
• Psoriasis and others
• Stds
• Vascular tumors
• Vulvar disease

• Psoriasis
• Psoriasis Introduction
• Psoriasis Approach to the Patient
• Chronic Plaque Psoriasis
• Guttate Psoriasis
• Localized Pustular Psoriasis
• Inverse Psoriasis
• Generalized Pustular Psoriasis
• Nail Psoriasis
• Psoriasis Treatment Topical Therapy
• Psoriasis Treatment Phototherapy
• Psoriasis Treatment Systemic Therapy
• Psoriasis Biologic Therapy
• Seborrheic dermatitis
• Seborrheic Dermatitis Introduction
• Seborrheic Dermatitis in Adults
• Seborrheic Dermatitis in Infants
• Seborrheic Dermatitis Treatment and Dandruff Treatment
• Pityriasis rosea
• Pityriasis Rosea Introduction
• Pityriasis Rosea Skin Findings and Clinical Course
• Pityriasis Rosea Treatment
• Lichen planus
• Lichen Planus Introduction
• Cutaneous Lichen Planus
• Mucosal Lichen Planus
• Nail Lichen Planus
• Lichen planus Treatment
• Lichen sclerosus
• Lichen Sclerosus Introduction
• Lichen sclerosis Skin Findings
• Lichen Sclerosus Mucosal Findings
• Lichen Sclerosus Treatment

Nail Lichen Planus

Nail changes may be present in the absence of skin findings. The usual presentation is proximal-to-distal linear depressions in the nail plate. Inflammation of the matrix results in adhesion of the proximal nail fold to the scarred matrix to form a pterygium.