Martín José M, Jordá Esperanza, Alonso Vicent, Villalón Guillermo, Montesinos Encarnación
Department of Dermatology, Hospital Clínico Universitario, 46010 Valencia, Spain.
Pediatr Dermatol. 2009 Nov-Dec;26(6):706-8. doi: 10.1111/j.1525-1470.2009.01017.x.
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.
分娩期间或之前宫颈口对头皮施加异常长时间的压力，可能会导致一种独特的环形脱发模式，即所谓的光环头皮环。这种罕见的脱发形式通常是一种暂时的、非瘢痕性过程，归因于先锋头。我们报告了一例早产新生儿出现光环头皮环的新病例。对先前报道病例的回顾表明，早产是发生光环头皮环的一个重要的、以前未被认识到的危险因素。
