Acne Keloidalis Nuchae: A Multicenter Retrospective Study of 142 Hispanic Patients

Luis E.  Sánchez-Dueñas; Mariana G.  Ungson-García; Joel Alejandro Ramirez Sanchez; Ayala Barrera Antonio Michell; Marti Machado Miguel; Sonia Sofía  Ocampo-Garza; Lizet K.  Rojano-Fritz; Aldo  Gálvez-Canseco; Lidia Elena  Bernal López; Daniela Gutierrez Mendoza; Roxana  Castañeda Yepiz; Araceli  Alvarado Delgadillo; Yakelin  Morales Miranda

doi:10.5826/dpc.1403a198

Acne Keloidalis Nuchae: A Multicenter Retrospective Study of 142 Hispanic Patients

Authors

Luis E. Sánchez-Dueñas Dermatology Department, Dermika Centro Dermatológico Láser, Guadalajara, Mexico
Mariana G. Ungson-García Dermatology Department, Hospital Regional “Dr. Valentín Gómez Farías”, Guadalajara, Mexico
Joel Alejandro Ramirez Sanchez Dermatology Department, Instituto Dermatológico de Jalisco “Dr. José Barba Rubio”, Guadalajara, Mexico
Ayala Barrera Antonio Michell Instituto Tecnológico y de Estudios Superiores de Monterrey, Guadalajara, Mexico
Marti Machado Miguel Dr. Marti, Hair and Scalp Diseases Group, Buenos Aires, Argentina
Sonia Sofía Ocampo-Garza Dermatology Department, Universidad Autónoma de Nuevo León, Hospital Universitario “Dr. José Eleuterio González”, Monterrey, Mexico
Lizet K. Rojano-Fritz Private Practice, Barranquilla, Colombia
Aldo Gálvez-Canseco Private Practice, Lima, Perú
Lidia Elena Bernal López Private Practice, Hospital General “Dr. Manuel Gea Gonzalez”, CDMX, Mexico
Daniela Gutierrez Mendoza Private Practice, Tijuana, Mexico
Roxana Castañeda Yepiz Private Practice, Tijuana, Mexico
Araceli Alvarado Delgadillo Centro Especializado en Enfermedades de la Piel (CEEPIEL), Hidalgo, Mexico
Yakelin Morales Miranda Private Practice, Hospital Angeles Lomas, CDMX, Mexico

Keywords:

Acne Keloid, Folliculitis Keloidalis Nuchae, Hispanic or Latino, Follicular Occlusive Disorders

Abstract

Introduction: Acne keloidalis nuchae (AKN) is a primary cicatricial alopecia with mixed infiltrate. It is more common in African or persons of African descent.

Objectives: Our objective was to describe the epidemiology and clinical and trichoscopic presentations of AKN in a large series of Hispanic patients.

Methods: This was a retrospective study from 10 different dermatological centers in Argentina, Colombia, Mexico, and Peru. Patients with a clinical diagnosis of AKN treated by 12 dermatologists experienced in trichology from 2018 to 2022 were included. The Umar classification system was used to determine severity.

Results: We identified 142 patients with AKN: 98% were male (n=140) with a mean age of 32 years; 108 patients had a previous history of trauma to the nuchal area (76%, p<0.001); and 48 were positive for a history of acne (33.8%, p=0.021). Patients with >50 months of evolution were mainly classified in classes III and IV compared to patients with an evolution of <50 months (30%, n=9 vs. 14%, n=15; p=0.019; respectively).

Conclusion: AKN should be considered in the differential diagnosis in the Hispanic population. Advanced stages of the disease are correlated with chronic evolution.

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