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. 2019 Jun;5(4):238-241.
doi: 10.1159/000496748. Epub 2019 Mar 5.

Circumferential Nail

Deepak Jakhar  1 , Chander Grover  1 , Ishmeet Kaur  1
Affiliations

Circumferential Nail

Deepak Jakhar et al. Skin Appendage Disord. 2019 Jun.

Abstract

Circumferential nail is an extremely rare congenital anomaly of nail development. Only a few case reports have been published in the past. We report a 20-year-old male with circumferential nail without any other congenital malformation.

Keywords: Circumferential nail; Dorsal dimelia; Nail fold capillaroscopy; Tubular nail.

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Conflict of interest statement

The authors have no conflicts of interest to declare.

Figures

Fig. 1
Fig. 1
a Right hand of the patient showing a supernumerary digit arising from the base of the thumb. b The extra digit was seen to have a tubular or circumferential nail.
Fig. 2
Fig. 2
a, b Nail fold capillaroscopy showing a normal pattern and distribution of nail fold capillaries on both the dorsal (a) and ventral or palmar nail folds (b) (Dinolite AM7115MZT, polarised view with linkage fluid, 200×). c Dermatoscopy (onychoscopy) of the distal end of the digit shows the hyponychium (Dinolite AM7115MZT, polarised view with linkage fluid, 50×).
Fig. 3
Fig. 3
a, b Skiagram of the right hand showing the extra digit arising from the lateral aspect of the first metacarpal. Well-differentiated proximal, intermediate, and distal phalanges can be seen, though the distal phalanx is somewhat shorter (b), surrounded by a tubular nail shadow (a).
See this image and copyright information in PMC

References

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