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nail pitting

Etiology: - psoriasis - psoriatic arthritis - connective tissue disorders - reactive arthritis - lichen planus [1] - alopecia areata - eczema [5] - sarcoidosis [3] - idiopathic [5] Pathology: - proximal nail matrix inflammation [5] - abnormal keratinization of the proximal nail matrix Clinical manifestations: - tiny indentation (pits) on the mail plate * images [4,5]

General

sign/symptom nail disease

References

  1. Medical Knowledge Self Assessment Program (MKSAP) 17, 18. American College of Physicians, Philadelphia 2015, 2018.
  2. Mayo Clinic Slide show: 7 fingernail problems not to ignore. http://www.mayoclinic.org/healthy-lifestyle/adult-health/multimedia/nails/sls-20076131
  3. Stoppler MC Nail Pitting. MedicineNet.com http://www.medicinenet.com/nail_pitting/symptoms.htm
  4. Moreno-Romero JA, Grimalt R. Nail Pitting in Psoriasis. N Engl J Med 2018; 379:e39. Nov 29, 2018 PMID: 30485773 https://www.nejm.org/doi/full/10.1056/NEJMicm1803217
  5. Brady MP Fingernail and Toenail Abnormalities: Nail the Diagnosis. Medscape March 17, 2021 https://reference.medscape.com/slideshow/fingernail-abnormalities-6002456