Diseases of the Nails #11
Psoriatic nail disease is deformation of the nail unit of unclear etiology. It typically occurs in patients with clinically evident psoriasis and rarely is the only cutaneous finding. The clinical manifestations are protean and depend upon the portion of the nail unit affected. Findings may include pitting, Beau's lines (transverse lines in the nail caused by intermittent growth arrest), salmon patches, subungual hyperkeratosis, onycholysis, nail plate crumbling, splinter hemorrhages, and a spotted lunula. Diagnosis is made on clinical findings or by a nail biopsy. Treatment focuses on the functional and psychosocial aspects of the disease, as no curative treatment is available. Options include corticosteroids, psoralen plus ultraviolet light (PUVA), chemotherapeutic agents, and avulsion therapy.
http://www.medscape.com/features/slideshow/nail-diseases?src=nl_slide
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