Alopecia areata complicated by plica neuropathica: A rare case report

Agarwal, Shradha; Vijay, Atul; Sharma, Manoj; Jain, Akshay Kumar

doi:10.4103/ijt.ijt_10_22

Cited by 1 publication

(1 citation statement)

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“…Electrostatic attraction between the hair strands, triggered by these risk factors, leads to matting and irreversible damage [6]. Certain cosmetics have been associated with PN, including the use of harsh shampoos, cationic surfactants, as well as certain hairdressing and hairstyle practices [7]. Severe contact dermatitis resulting from exposure to Croton tiglium has been documented as a cause of acute hair matting [8].…”

Section: Discussionmentioning

confidence: 99%

Plica Neuropathica in 2 Hispanic Patients

Asz-Sigall,

Ramos-Cavazos,

Gay-Muñoz

et al. 2023

Skin Appendage Disord

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Introduction: Plica neuropathica (PN) is a rare, acquired, and irreversible condition characterized by the formation of a compacted mass of tangled hair held together by a hard keratin cement. Case Presentation: In case 1, a 50-year-old woman with history of contact dermatitis of the scalp presented with hair tangling and difficulty combing. Physical examination revealed a matted mass of hair with a dirty appearance and non-scarring alopecia. Case 2 involved a 46-year-old woman who experienced spontaneous hair matting after using various products, resulting in a dreadlock-like appearance. Clinical examination showed a compact and matted mass of hair with irregular twists, dirt, and yellowish exudate. Conclusion: PN’s exact pathogenesis is not fully understood, but it is believed to involve physical and chemical insults to the hair shaft. Risk factors include self-neglect, hair felting or rubbing, certain substances, religious practices, chemotherapy, immunosuppressive drugs, infections, and contact dermatitis. Trichoscopy can provide valuable clues for an accurate diagnosis, such as fractured hairs, bent hair shafts, trichorrhexis nodosa, retained telogen hairs, and twisted hairs. Treatment involves cutting the matted hair, and early-stage manual separation may be beneficial.

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Section: Discussionmentioning

confidence: 99%