Histiocytosis: Difference between revisions
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'''''Synonyms and related keywords:''''' Hand-Schuller-Christian disease, Histiocytosis X, Langerhans cell histiocytosis; Eosinophilic granuloma; Pulmonary histiocytosis X; Nonlipid reticuloendotheliosis; Pulmonary Langerhans cell granulomatosis and Letterer-Siwe disease | '''''Synonyms and related keywords:''''' Hand-Schuller-Christian disease, Histiocytosis X, Langerhans cell histiocytosis; Eosinophilic granuloma; Pulmonary histiocytosis X; Nonlipid reticuloendotheliosis; Pulmonary Langerhans cell granulomatosis and Letterer-Siwe disease |
Revision as of 14:20, 21 September 2012
Histiocytosis | |
ICD-10 | C96.1, D76.0 |
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ICD-9 | 202.3, 277.89 |
MeSH | D015614 |
Histiocytosis Microchapters |
Diagnosis |
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Treatment |
Case Studies |
Histiocytosis On the Web |
American Roentgen Ray Society Images of Histiocytosis |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Synonyms and related keywords: Hand-Schuller-Christian disease, Histiocytosis X, Langerhans cell histiocytosis; Eosinophilic granuloma; Pulmonary histiocytosis X; Nonlipid reticuloendotheliosis; Pulmonary Langerhans cell granulomatosis and Letterer-Siwe disease
Overview
In medicine, histiocytosis is an excessive number of histiocytes,that is an excessive number of tissue macrophages, and is typically used to refer to a group of rare diseases which share this as a characteristic. Occasionally and confusingly it is sometimes used to refer to individual diseases.
According to the Histiocytosis Association of America, 1 in 200,000 children in the United States are born with histiocytosis each year.[1] HAA also states that most of the people diagnosed with histiocytosis are children under the age of 10. The University of California, San Francisco, states that the disease usually occurs from birth to age 15.[2]
Histiocytosis (and malignant histiocytosis) are both important in veterinary as well as human pathology.
Presentation
Histiocytosis is frequently associated with diabetes insipidus, even after several years of diagnosis and successful therapy.
Classification, and relationships to other conditions
There are competing systems for classifying histiocytoses. According to the 1999 classification proposed by the World Health Organization, they can be divided into three categories.[3]. However, the classifications in ICD10 and MeSH are slightly different, as shown below:
Name | WHO | ICD10 | MeSH |
Langerhans cell histiocytosis (LCH) | I | D76.0 | Langerhans-cell histiocytosis |
Juvenile xanthogranuloma (JXG) | II | D76.3 | non-Langerhans-cell histiocytosis |
Hemophagocytic lymphohistiocytosis (HLH) | II | D76.1 | non-Langerhans-cell histiocytosis |
Niemann-Pick disease | - | E75.2 | non-Langerhans-cell histiocytosis |
Sea-blue histiocyte syndrome | - | - | non-Langerhans-cell histiocytosis |
Acute monocytic leukemia | III | C93.0 | malignant histiocytic disorders |
Malignant histiocytosis | III | C96.1 | malignant histiocytic disorders |
Erdheim-Chester disease | - | C96.1 | malignant histiocytic disorders |
Types of LCH have also been known as "Eosinophilic Granuloma", "Hand-Schuller-Christian Disease", "Letterer-Siwe Disease", and "Histiocytosis X". (See LCH history for details).
Common treatments
- Chemotherapy
- Cladribine or 2CDA or leustatin
- Etoposide
- Vinblastine or Velban
Organizations
Patients and families can gain some support by contacting patient organisations such as the Histiocytosis Association of America ([2]) or the Histiocytosis Research Trust ([3]). The Histiocytosis Association of America has several stable and proven treatment protocols available only for physicians ([4]).
References
- ↑ Disease information at the Histiocytosis Association of America
- ↑ http://www.ucsfhealth.org/childrens/medical_services/cancer/histio/conditions/histio/signs.html
- ↑ Harris N, Jaffe E, Diebold J, Flandrin G, Muller-Hermelink H, Vardiman J, Lister T, Bloomfield C (1999). "The World Health Organization classification of neoplastic diseases of the hematopoietic and lymphoid tissues. Report of the Clinical Advisory Committee meeting, Airlie House, Virginia, November, 1997". Ann Oncol. 10 (12): 1419–32. PMID 10643532.