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Case Reports
. 2020 Nov;34(11):e663-e665.
doi: 10.1111/jdv.16747. Epub 2020 Jun 29.

The red half-moon nail sign: a novel manifestation of coronavirus infection

Affiliations
Case Reports

The red half-moon nail sign: a novel manifestation of coronavirus infection

I Neri et al. J Eur Acad Dermatol Venereol. 2020 Nov.
No abstract available

PubMed Disclaimer

Conflict of interest statement

Dr. Neri, Dr. Guglielmo, Dr. Virdi, Dr. Gaspari, Dr. Starace and Dr. Piraccini have nothing to disclose.

Figures

Figure 1
Figure 1
Distally convex half‐moon‐shaped red bands surrounding the distal margin of the lunula.
Figure 2
Figure 2
The half‐moon‐shaped red bands are still present after 1 month of follow‐up on all fingernails and appear wider.

References

    1. Wadman M, Couzin‐Frankel J, Kaiser J, Matacic C. A rampage through the body. Science 2020; 368: 356–360. - PubMed
    1. Recalcati S. Cutaneous manifestations in COVID‐19: a first perspective. J Eur Acad Dermatol Venereol 2020; 34: e212–e213. - PubMed
    1. Marzano AV, Genovese G, Fabbrocini G et al. Varicella‐like exanthem as a specific COVID‐19‐associated skin manifestation: multicenter case series of 22 patients. J Am Acad Dermatol 2020; 83: 280–285. - PMC - PubMed
    1. Henry D, Ackerman M, Sancelme E et al. Urticarial eruption in COVID‐19 infection. J Eur Acad Dermatol Venereol 2020. 10.1111/jdv.16472 - DOI - PMC - PubMed
    1. Jellinek NJ. Longitudinal erythronychia: suggestions for evaluation and management. J Am Acad Dermatol 2011; 64:167.e1–167.e11. - PubMed