Make An Appointment: About Histiocytosis Histiocytosis, also referred to as Langerhans Cell Histiocytosis LCH , and formally called Histiocytosis X, represents a group of rare disorders involving specific cells that normally have important roles as part of the immune system. Histiocytosis is a generic name for a group of syndromes characterized by an abnormal increase in the number of certain immune cells called histiocytes. These include monocytes, macrophages, and dendritic cells. A histiocyte is a normal immune cell that is found in many parts of the body especially in the bone marrow, the blood stream, the skin, the liver, the lungs, the lymph glands and the spleen. In histiocytosis, the histiocytes move into tissues where they are not normally found and cause damage to those tissues.

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Breathing support with a breathing machine Hormone replacement therapy Special shampoos for scalp problems Supportive care also called comfort care to relieve symptoms In addition, people with these conditions who smoke are encouraged to stop since smoking may worsen the response to treatment. Support Groups Outlook Prognosis Langerhans cell histiocytosis and Erdheim-Chester disease can affect many organs and can lead to death. About one half of those with pulmonary histiocytosis improve, while others have permanent loss of lung function over time.

In very young people, the outlook depends on the specific histiocytosis and how severe it is. Some children can live a normal life with minimal disease involvement, while others do poorly.

Young children, especially infants, are more likely to have body-wide symptoms that lead to death. Go to the emergency room if shortness of breath or chest pain develops. Prevention Avoid smoking. Quitting smoking can improve the outcome in people with Langerhans cell histiocytosis that affects the lungs. There is no known prevention of this disease. Diverse and targetable kinase alterations drive histiocytic neoplasms.

Cancer Discov. PMID: Consensus guidelines for the diagnosis and clinical management of Erdheim-Chester disease. Revised classification of histiocytoses and neoplasms of the macrophage-dendritic cell lineages.

Langerhans cell histiocytosis LCH : guidelines for diagnosis, clinical work-up, and treatment for patients till the age of 18 years. Pediatr Blood Cancer. PMID: www. N Engl J Med. Hematopoietic origin of Langerhans cell histiocytosis and Erdheim-Chester disease in adults. The histopathology of Erdheim-Chester disease: a comprehensive review of a molecularly characterized cohort.

Mod Pathol. Langerhans cell histiocytosis: emerging insights and clinical implications. Editorial team.



Langerhans Cell Histiocytosis, Hashimoto-Pritzker Type Langerhans Cell Histiocytosis of lung Langerhans Cell Histiocytosis, disseminated clinical Langerhans Cell Histiocytosis, unifocal clinical The disease spectrum results from clonal accumulation and proliferation of cells resembling the epidermal dendritic cells called Langerhans cells , sometimes called dendritic cell histiocytosis. These cells in combination with lymphocytes , eosinophils , and normal histiocytes form typical LCH lesions that can be found in almost any organ. LCH is clinically divided into three groups: unifocal, multifocal unisystem, and multifocal multisystem. It typically has no extraskeletal involvement, but rarely a lesion can be found in the skin, lungs, or stomach.


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