Examination of a newborn child revealed an atypical nail on the little finger of the left hand: the nail plate was thickened

Examination of a newborn child revealed an atypical nail on the little finger of the left hand: the nail plate was thickened, very hard, dull, brownish in color, 1 cm long, highly raised and curved, resembling a claw. How do you explain the possibility of this developmental anomaly in a child?

Onychogryphosis is a claw-like nail. A developmental anomaly associated with a change in the shape of the nail. The emergence of this anomaly is likely associated with a violation of cellular regulatory mechanisms: cell induction, proliferation and differentiation of cells. This anomaly can be regarded as an atavistic sign of a person.

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