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Trichoscopy II: Cicatricial Alopecia
Published in Rubina Alves, Ramon Grimalt, Techniques in the Evaluation and Management of Hair Diseases, 2021
Bruna Duque-Estrada, Rodrigo Pirmez
Acne keloidalis nuchae is a chronic inflammatory condition that affects young adults of African and Hispanic descent. Shaving of short curled hairs has been associated as the main precipitating factor that leads to inflammation and keloidal formation. It can be associated with dissecting cellulitis and folliculitis decalvans.
Cicatricial alopecias: Pathogenesis, classification, clinical features, diagnosis, and management
Published in Jerry Shapiro, Nina Otberg, Hair Loss and Restoration, 2015
Acne keloidalis nuchae (AKN) predominantly occurs in young men aged from 14 to 25. This idiopathic primary cicatricial alopecia might be triggered by trauma (shirt collars) or infection (demodex or bacteria). Clinically, AKN presents with skin-colored follicular papules, pustules, and plaques as well as keloid-like scarred lesions in the occipital scalp (Figure 6.23a and b). Histologically, acne keloidalis is characterized by an acute inflammation with neutrophilic or lymphocytic infiltration and chronic granulomatous inflammation around the isthmus and the lower infundibulum.
Surgical management of giant acne keloidalis nuchae lesions
Published in Case Reports in Plastic Surgery and Hand Surgery, 2021
Laura I. Galarza, Camille A. Azar, Youssef Al Hmada, Abelardo Medina
Acne keloidalis nuchae also referred to as folliculitis keloidalis nuchae, is a condition associated with chronic inflammation and scarring of folliculitis [1]. This name continues to be utilized today to describe the condition in spite of evidence that true keloid formation does not occur in AKN [4]. AKN primarily occurs in young post-pubertal men of African descent, although instances of AKN affecting other ethnic groups have been described [5,6]. Even though the exact etiology remains to be elucidated, several authors have suggested androgen surges, inflammation, infection, trauma, genetic predisposition and ingrown hairs as inciting events in AKN development. Additionally, as seen in our patients, metabolic syndrome has previously been described as a predisposing factor [6]. Some studies compare AKN to pseudofolliculitis barbae hypothesizing that curved growth of the hair shafts into skin results in irritation with subsequent inflammation [7,8].
Successful treatment of acne keloidalis nuchae with erbium:YAG laser: a comparative study
Published in Journal of Cosmetic and Laser Therapy, 2018
Hend D. Gamil, Elsayed M. Khater, Fathia M. Khattab, Mona A. Khalil
Acne keloidalis nuchae (AKN), which is a chronic inflammatory condition, has proved challenging to treat, and numerous modalities have been used with varying degrees of success (1–3). Papulopustular lesions may respond to topical or intralesional steroids and to topical retinoids, antibiotics, and immune modulators. Larger plaques require surgical excision (4–6)