title: Halo scalp ring in a premature newborn and review of the literature.
abstract: Unusually prolonged pressure on the scalp by the cervical os during or before the delivery may result in a distinctive pattern of annular alopecia that has been referred to as halo scalp ring. This rare form of hair loss is most commonly a temporary, non-scarring process that is attributed to caput succedaneum. We report a new case of halo scalp ring in a premature newborn. Review of previously reported cases suggests that prematurity is an important, previously unrecognized, risk factor for developing a halo scalp ring.
authors.affiliation: Department of Dermatology, Hospital Clínico Universitario, 46010 Valencia, Spain. jmmart@eresmas.com
authors.forename: José M
authors.initials: JM
authors.lastname: Martín
authors.forename: Esperanza
authors.initials: E
authors.lastname: Jordá
authors.forename: Vicent
authors.initials: V
authors.lastname: Alonso
authors.forename: Guillermo
authors.initials: G
authors.lastname: Villalón
authors.forename: Encarnación
authors.initials: E
authors.lastname: Montesinos
mesh_terms: D000505:Alopecia / Q000453:epidemiology / Q000473:pathology*; D005260:Female; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D007234:Infant, Premature; D012307:Risk Factors; D012535:Scalp / Q000473:pathology*