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onychorrhexis; longitudinal white striations or ridges

Etiology: - advanced age - rheumatoid arthritis - peripheral vascular disease - lichen planus - Darier disease (striations may be white, red & broad) - sarcoidosis Clinical manifestations: - longitudinal white striations or ridges on nail plate* * image [2]

General

leukonychia; achromia unguium; canities unguium; leukopathia unguis; white nails

References

  1. Brady MP Fingernail and Toenail Abnormalities: Nail the Diagnosis. Medscape March 17, 2021 https://reference.medscape.com/slideshow/fingernail-abnormalities-6002456
  2. Ward R, Kalus A, Schachtel A. Images in Dermatology: Nail Sarcoidosis JAMA Dermatol. 2022;158(10):1202 https://jamanetwork.com/journals/jamadermatology/fullarticle/2795311