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Book

Spoon Nails

In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan.
.
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Book

Spoon Nails

Dipali G. Rathod et al.
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Excerpt

The term “koilonychia” is derived from the Greek word ‘koilos’ which means ‘hollow’ and ‘onikh’ means ‘nail’. This abnormality of the nails is also called as spoon-shaped (concave) nails. The nail abnormality is characterized by thin, brittle, concave nail dystrophy either placed horizontally or vertically, where the finger or toenail plate seems to be centrally depressed and everted laterally. It can be found in newborns, children, and adults. When a patient presents with this symptom, it is imperative to look into further to see if there are more serious health concerns that may be present.

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Conflict of interest statement

Disclosure: Dipali Rathod declares no relevant financial relationships with ineligible companies.

Disclosure: Sidharth Sonthalia declares no relevant financial relationships with ineligible companies.

References

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    1. Stone OJ. Clubbing and koilonychia. Dermatol Clin. 1985 Jul;3(3):485-90. - PubMed
    1. STONE OJ, MABERRY JD. SPOON NAILS AND CLUBBING. REVIEW AND POSSIBLE STRUCTURAL MECHANISMS. Tex State J Med. 1965 Aug;61:620-7. - PubMed
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