Related Experiment Video
Updated: Apr 16, 2026
Minimal Erythema Dose MED Testing
Published on: May 28, 2013
Erdheim-Chester disease: a systematic review
Mauro Cives1, Valeria Simone1, Francesca Maria Rizzo1
1Department of Biomedical Sciences and Human Oncology, University of Bari "A. Moro", Bari, Italy.
Insights
Erdheim-Chester disease (ECD), a rare histiocytosis linked to BRAF mutations, presents diverse symptoms. Central nervous system (CNS) involvement impacts organ distribution but not current treatment strategies.
Area of Science:
- Histiocytosis Research
- Rare Diseases
- Genetics and Molecular Biology
Background:
- Erdheim-Chester disease (ECD) is a rare non-Langerhans-cell histiocytosis.
- BRAF(V600E) mutations are found in over 50% of ECD cases, originating from myeloid precursors or histiocytes.
- ECD exhibits a wide clinical spectrum, from asymptomatic bone lesions to life-threatening multisystemic disease.
Observation:
- A review of 448 histologically-confirmed ECD cases analyzed clinical, radiological, and therapeutic features.
- Central nervous system (CNS) involvement occurred in 56% of patients, manifesting as diabetes insipidus, visual disturbances, and neurological syndromes.
- Typical ECD presentation includes pituitary, retro-orbital, and axial lesions with osteosclerosis; CNS involvement correlates with decreased cardiac and increased other organ infiltration.
Findings:
- Patients with CNS infiltration showed a lower incidence of cardiac involvement.
- Conversely, CNS involvement was associated with a higher incidence of bone, skin, retro-peritoneal, lung, aortic, and renal infiltration.
- No significant differences in therapeutic approaches were observed when stratifying patients based on CNS involvement.
Implications:
- Understanding ECD pathogenesis, including BRAF deregulation, is crucial for developing improved prognostic criteria.
- Further research into ECD pathogenesis may lead to novel therapeutic strategies and better patient management.
- Identifying specific clinical signatures associated with CNS involvement can aid in risk stratification and personalized treatment planning.
Abstract:
Erdheim-Chester disease (ECD) is a rare form of non-Langerhans-cell histiocytosis, associated in more than 50% of cases to BRAF(V600E) mutations in early multipotent myelomonocytic precursors or in tissue-resident histiocytes. It encompasses a spectrum of disorders ranging from asymptomatic bone lesions to multisystemic, life-threatening variants. We reviewed all published reports of histologically-confirmed ECD and explored clinical, radiological, prognostic and therapeutic characteristics in a population of 448 patients, including a unique patient from our Department. To find a clinically relevant signature defining differentiated prognostic profiles, the patients' disease features were compared in relation to their CNS involvement that occurred in 56% of the entire population. Diabetes insipidus, visual disturbances, pyramidal and extra-pyramidal syndromes were the most recurrent neurological signs, whereas concomitant pituitary involvement, retro-orbital masses and axial lesions in the presence of symmetric bilateral osteosclerosis of long bones depicted the typical ECD clinical picture. Patients with CNS infiltration showed a lower occurrence of heart involvement and a higher incidence of bone, skin, retro-peritoneal, lung, aortic and renal infiltration. No difference in the therapeutic algorithm was found after stratification for CNS involvement. A better understanding of the disease pathogenesis, including BRAF deregulation, in keeping with improved prognostic criteria, will provide novel suggestions for the management of ECD.
Related Concept Videos
01:23Rheumatic Heart Disease I: Introduction
01:22Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies
01:25Endocarditis II: Clinical Features of Infective Endocarditis
01:17Chronic Bowel Disorders: Introduction
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...