Psoriasis of the Nails

Nail changes in psoriasis: a study of 167 patients

“…As expected, pitting was the most common feature, followed by onycholysis, discoloration, subungual hyperkeratosis, longitudinal ridging and thickening of the nail plate. This frequency distribution is very similar to earlier reports 1,2 …”

Psoriasis of the nail: Anatomy, pathology, clinical presentation, and a review of the literature on therapy

“…Although the incidence of nail lesions as the only clinical feature of psoriasis is rare, Crawford reports that nails can be affected in 15% to 50% of cases. 4 While this figure is based on a number of older sources, [4][5][6][7][8] it should be noted that to date, no recent and proper epidemiologic studies have been conducted with respect to the incidence and prevalence of nail psoriasis. As stated by Samman and Fenton, 9 the lifetime incidence of nail involvement in psoriatic patients is approximated to be between 80% and 90%.…”

Effective treatment of nail psoriasis with apremilast: report of two cases and review of the literature

“…Psoriasis is a chronic systemic inflammatory disease that affects up to 2.6% of the population depending on the series [1]. About 50% of patients have nail involvement as well, especially if there is concomitant arthritis [2].…”