Nail, Concave

Definition:

Subjective: The natural longitudinal (P/D) convex arch is not present or is inverted

Comments:

This often results in a saucer- or spoon-shaped nail and the free edge of the nail is typically everted. The affected digits should be specified. Note that the bundled term koilonychia is an abnormal shape of the fingernail where the nail has raised ridges and is thin and concave.

Replaces:

• Koilonychia
• Spoon Shaped Nails

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