Halo scalp ring: a case series and review of the literature.
BACKGROUND
Halo scalp ring is an uncommonly reported alopecia of the scalp that arises perinatally.


OBJECTIVE
To describe 5 new cases of halo scalp ring, and to review the literature.


METHODS
An outpatient dermatology clinic in an urban area; patients diagnosed in a 2-year period were included in the study.


RESULTS
Halo scalp ring is most commonly a temporary, nonscarring alopecia that occurs in patients born to primigravidas.


CONCLUSIONS
Halo scalp ring is a distinctive form of alopecia attributed to caput succedaneum. It is underreported and generally has a good prognosis. However, scarring may occur.
Tanzi
Elizabeth L
EL
Department of Dermatology, St Luke's-Roosevelt Hospital Center, 1090 Amsterdam Ave, Suite 11D, New York, NY 10025, USA.
Hornung
Robin L
RL
Silverberg
Nanette B
NB
D000505:Alopecia / Q000175:diagnosis* / Q000209:etiology; D002675:Child, Preschool; D036861:Delivery, Obstetric; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D011379:Prognosis