Spoon‐shaped nails in an 11‐year‐old boy
The present case has been reported in the British Journal of Dermatology.

An 11‐year‐old boy was referred with flat and spoon‐shaped plate nails of the fingers and toes, which had been present since his early childhood. Microscopic examinations were negative for fungi. Laboratory studies were negative for diabetes, iron‐deficiency anaemia, thyroid abnormalities and autoimmune disease.

His family history revealed familial occurrence of abnormal nails in his twin brother and two maternal cousins. Therefore, familial koilonychia was diagnosed.

The aetiologies of koilonychias can be divided into hereditary, acquired and idiopathic. Hereditary or familial koilonychia is believed to be inherited in an autosomal dominant pattern. This is a diagnosis made by clinical exam only.

Clinical pearls:-
- Appropriate work‐up is important to exclude an underlying cutaneous or systemic disorder.

- A carefully taken family history is the clue in the diagnosis of hereditary koilonychias.

Source: https://pxmd.co/YQrTs