학술논문
Long-term outcome and prognosis of mixed histiocytosis (Erdheim-Chester disease and Langerhans Cell Histiocytosis)Research in context
Document Type
article
Author
Francesco Pegoraro; Matthias Papo; Fleur Cohen-Aubart; Francesco Peyronel; Gianmarco Lugli; Irene Trambusti; Gildas Baulier; Mathilde de Menthon; Tanguy Le Scornet; Eric Oziol; Nicole Ferreira-Maldent; Olivier Hermine; Benoit Faucher; Dirk Koschel; Nicole Straetmans; Noémie Abisror; Benjamin Terrier; François Lifermann; Jerome Razanamahery; Yves Allenbach; Jeremy Keraen; Sophie Bulifon; Baptiste Hervier; Annamaria Buccoliero; Frederic Charlotte; Quentin Monzani; Samia Boussouar; Natalia Shor; Annalisa Tondo; Stephane Barete; Ahmed Idbaih; Abdellatif Tazi; Elena Sieni; Zahir Amoura; Jean-François Emile; Augusto Vaglio; Julien Haroche
Source
EClinicalMedicine, Vol 73, Iss , Pp 102658- (2024)
Subject
Language
English
ISSN
2589-5370
Abstract
Summary: Background: Erdheim-Chester disease (ECD) is a rare histiocytosis that may overlap with Langerhans Cell Histiocytosis (LCH). This “mixed” entity is poorly characterized. We here investigated the clinical phenotype, outcome, and prognostic factors of a large cohort of patients with mixed ECD-LCH. Methods: This retrospective study was performed at two referral centers in France and Italy (Pitié-Salpêtrière Hospital, Paris; Meyer Children’s Hospital, Florence). We included children and adults with ECD diagnosed in 2000–2022 who had biopsy-proven LCH, available data on clinical presentation, treatment and outcome, and a minimum follow-up of one year. Outcomes included differences in clinical presentation and survival between mixed ECD-LCH and isolated ECD; we also investigated response to treatments and predictors of survival in the mixed cohort. Survival was analyzed using the Kaplan-Maier method and differences in survival with the long-rank test. Cox regression models were used to evaluate the potential impact of age and gender on survival and to identify predictors of non-response and survival. Findings: Out of a cohort of 502 ECD patients, 69 (14%) had mixed ECD-LCH. Compared to isolated ECD, mixed ECD-LCH occurred more frequently in females (51 vs. 26%, p