Pediatric Pityriasis Amiantacea: A Multicenter Retrospective Study of 76 Patients
Year: 2025
Type: article
Study design: Observational Study
Abstract: Introduction: Pityriasis amiantacea (PA), also known as pseudotinea amiantacea, is a scalp disorder characterized by adherent scales surrounding hair tufts, with an unclear etiopathogenesis potentially linked to inflammatory scalp diseases such as psoriasis, seborrheic dermatitis, and atopic dermatitis. Methods: This retrospective multicenter study analyzed the epidemiology, clinical presentation, trichoscopic features, and management of 76 pediatric patients diagnosed with PA across 22 centers. Results: Pruritus was the hallmark symptom, and scarring alopecia was rare in pediatric patients. Regarding trichoscopy, recognizing the vascular patterns is demonstrated to be valuable for severe or unresponsive cases. In our study, monotherapy using topical steroid treatment generally led to favorable outcomes, suggesting that PA may be less aggressive in children due to earlier diagnosis and less severe inflammation. Conclusion: This study highlights the importance of recognizing PA in pruritic scalp conditions in pediatric patients, suggesting effective management strategies that can improve quality of life despite the psychosocial impact of the disease.
Source: Skin Appendage Disorders
DOI: 10.1159/000547530
Authors: Felipe Tavares Rodrigues, Rita Fernanda Cortez de Almeida, Luciana Rodino Lemes, Carla Jorge Machado, Bianca Maria Piraccini, Michela Starace, Luca Rapparini, Nino Lortkipanidze, Asmahanane Souissi, Sineida Berbert Ferreira, Luna Azulay-Abulafia, Taynara Barreto, Regina Lúcia Barbosa Santos, Antonella Tosti, Colombina Vincenzi, Daniel Asz Sigall, Sebastian Agusto Mercau, Andrei Doroshkevich, Tatiana Silyuk, Luis Enrique Sánchez-Dueñas, Gabriel Lazzeri Cortez, Isabella Doche, Claudia Montoya, Daniela Gutiérrez-Mendoza, Sergio Vaño-Galván, Hudson Dutra Rezende, Verena Florenço, Daniela Guzman-Sanchez, Alejandro Bonifaz, Daniel Fernandes Melo
Institutions: Universidade do Estado do Rio de Janeiro, Universidade Federal de Minas Gerais, IRCCS Azienda Ospedliero-Universitaria di Bologna Policlinico di Sant'Orsola, University of Bologna, David Tvildiani Medical University, Tunis University, Hôpital La Rabta, Faculté de médecine de Tunis, Tunis El Manar University, Universidade Federal do Rio de Janeiro, University of Miami, Hospital General Dr. Manuel Gea Gonzalez, Universidad de Guadalajara, Universidade Federal de São Paulo, Universidade de São Paulo, Universidad del Norte, Universidad de Alcalá, Instituto Ramón y Cajal de Investigación Sanitaria, Hospital Universitario Ramón y Cajal, Centro Universitário Lusíada, Hospital General de México
Language: English
Topic: Nail Diseases and Treatments
Subfield: Epidemiology
Field: Medicine
Domain: Health Sciences
Open Access status: green
OpenAlex ID: W4412976227