hair collar sign


Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.
Related to hair collar sign: Hair Color

hair collar sign

a tuft of hypertrophic hair in the midline scalp of a baby; may be a cutaneous marker for neural tube dysraphism.

hair collar sign

In the newborn, a ring of long, dark, coarse hair surrounding a midline nodule on the scalp. This may indicate neural tube closure defect.
See also: sign