Miscellaneous nail presentations.

A variety of individual nail dystrophies that are not categorized easily in other articles are reviewed. Onychoatrophia, anonychia, onychorrhexis, leukonychia, Beau's lines, onycholysis, onychomadesis, onychoschizia, haplonychia, longitudinal melanonychia, and ventral pterygium are included and pictured clinically. Their clinical description, etiology, associated conditions, differential diagnoses, and treatments are discussed and tabulated.