Halo scalp ring: a form of localized scalp injury associated with caput succedaneum.
Caput succedaneum is a common birth injury attributed to cervical, uterine, or vaginal pressure on the fetal presenting part. It usually consists of diffuse soft tissue swelling and bruising, which resolve in a few days without sequelae. We have seen two patients who had an unusual alopecic "halo" ring on the scalp associated with a caput succedaneum.
D000505:Alopecia / Q000175:diagnosis / Q000473:pathology; D001720:Birth Injuries / Q000175:diagnosis* / Q000473:pathology; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D012535:Scalp / Q000293:injuries* / Q000473:pathology