Unusual Long-Term Survival in an Adult Patient With Langerhans Cell Histiocytosis and Central Nervous System Involvement: A Case Report

Langerhans cell histiocytosis (LCH) in adults is a rare condition. The disease presents with focal or multifocal involvement of a single organ/system or focal or disseminated multisystem disease. Involvement of the central nervous system (CNS) is also infrequent, with diabetes insipidus as a common...

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Bibliographic Details
Main Authors: María José Miranda Pallarés, Tomás Álvaro Naranjo, Anna Vidal Rodriguez, Francisca Martínez Madueño
Format: Article
Language:English
Published: Wiley 2025-01-01
Series:Case Reports in Hematology
Online Access:http://dx.doi.org/10.1155/crh/6031427
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Summary:Langerhans cell histiocytosis (LCH) in adults is a rare condition. The disease presents with focal or multifocal involvement of a single organ/system or focal or disseminated multisystem disease. Involvement of the central nervous system (CNS) is also infrequent, with diabetes insipidus as a common manifestation of posterior pituitary lesions. Biopsy-proven diagnosis with the observation of characteristic Langerhans cells infiltrate with positive immunohistochemistry of S100 protein, CD1a, and CD68 cells. The patient presented generalized lymphadenopathy and was diagnosed with low-risk single-system LCH-based distinctive pathological findings in a lymph node biopsy. During the disease, CNS involvement was documented and the patient received different sequential therapeutic schemes, achieving complete remission that has been maintained for 8 years. The prolonged duration of remission with disappearance of lymphadenopathy and CNS lesions in an adult patient with LCH is an unusual clinical observation.
ISSN:2090-6579