Moffitt D L, Lear J T, de Berker D A, Peachey R D
Department of Dermatology, Bristol Royal Infirmary, England.
Pediatr Dermatol. 1998 Jul-Aug;15(4):271-3. doi: 10.1046/j.1525-1470.1998.1998015271.x.
Pili annulati is a rare hair shaft abnormality of unknown pathogenesis which gives a gross beading effect. An association with alopecia areata has been reported. We present a 13-year-old girl who had alopecia areata and coincidentally was found to have pili annulati. Her mother also had pili annulati which had become more noticeable as her hair had become paler with age. We discuss the possible pathogenesis of pili annulati and relate that to the microscopic banding appearance of the hair shaft. We note the relevance of the condition becoming more apparent with age. We also discuss the probable coincidental association with alopecia areata.
竹节状发是一种病因不明的罕见毛干异常，会产生明显的串珠样外观。有报道称其与斑秃有关。我们报告了一名13岁患有斑秃的女孩，偶然发现她同时患有竹节状发。她的母亲也有竹节状发，随着年龄增长头发变浅，这种情况变得更加明显。我们讨论了竹节状发可能的发病机制，并将其与毛干的微观条纹外观联系起来。我们注意到这种情况会随着年龄增长而更加明显。我们还讨论了与斑秃可能的巧合关联。
