Scalp Trauma

Abstract

Background: Lichen planopilaris is a type of primary scarring alopecia that is characterized by perifollicular lymphocytic inflammation and fibrosis. The cause remains poorly understood, although recent research has begun to unravel some of the molecular mechanisms implicated in the pathogenesis.Objective: To present a case of biopsy-proven lichen planopilaris in a patient who had previously suffered serious head injury.Lichen planopilaris developed only in the areas of trauma.Conclusion: Our findings highlight the possible association between scalp trauma and the development of lichen planopilaris.Further research is needed to understand the role of scalp trauma in the pathogenesis of scarring alopecia.Contexte: Le lichen plano-pilaire est un type d'alopé cie de cicatrisation primaire, qui se caracté rise par une inflammation lymphocytaire pé rifolliculaire et par de la fibrose. La cause est obscure, mais des travaux ré cents de recherche ont commencé à mettre en é vidence certains mé canismes molé culaires, incriminé s dans la pathogenè se.Objectif: L'é tude visait à exposer un cas de lichen plano-pilaire, avé ré à la biopsie, chez un patient qui avait é té victime, dans le passé , d'un trauma crâ nien grave. Le lichen plano-pilaire ne se dé veloppe que dans les ré gions ayant subi des lé sions traumatiques.Conclusions: Les ré sultats de l'é tude font ressortir l'association possible entre les traumas du cuir chevelu et l'apparition de lichen plano-pilaire; toutefois, d'autres recherches s'imposent afin de faire la lumiè re sur le rô le du trauma du cuir chevelu dans la pathogenè se de l'alopé cie cicatricielle.

Scalp trauma in lichen planopilaris: Case reports of disease progression from fire fighter helmet use

“…Prior case reports have demonstrated the potential for other forms of scalp trauma to contribute to LPP including long term use of a high-tension hairstyle, direct injury to the scalp, and a patient who frequently spun on his head during breakdancing. 3 , 4 , 5 Reports have also been published on LPP developing after wig use, which is important to consider as patients with LPP may utilize wigs as cranial prostheses for camouflage. 6 Although incompletely understood, it is posited that frictional trauma may contribute to LPP by inducing an inflammatory environment that disrupts the normal immune protection of the hair follicle.…”

Refractory Folliculitis Decalvans Treatment Success with a Novel Surgical Excision Approach Using Guarded High-Tension Sutures

“…This is limited by high invasiveness, the requirement for general anesthesia, and a complication rate of over 27%. 28 In addition, the theoretical potential of the surgical trauma of such a procedure to cause an isomorphic activation of LPP disease 29 in the rest of the scalp already showing LPP-like histology was a deterring consideration. Another option was excision with skin grafting, which is a two-stage surgery that creates an uncontracted Alopecic plaque of the same or larger size than the original lesions, bearing a striking contrast with the surrounding skin in color, texture and lack of hair.…”

A proposed mechanism for central centrifugal cicatricial alopecia

“…LPP has been described to develop after trauma (break‐dancing and motor vehicular accident) and whole brain irradiation in case reports and case series (hair transplant or facelift) . This may be induced due to the Koebner phenomenon which is present in several dermatologic diseases including lichen planus .…”