from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of several abnormal conditions characterized by the appearance of histiocytes in the blood or tissues.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An excess of histiocytes, associated with various rare diseases.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a blood disease characterized by an abnormal multiplication of macrophages


Sorry, no etymologies found.


  • Of note, according Kallen and colleagues, there were 6 cases of a rare white blood cell disorder called histiocytosis (against 1 expected).

    Yahoo! News: Business - Opinion

  • And in doing so they have also told the rare disease community with truly rare diseases such as histiocytosis which affects 1 in 200,000 or apx 1600 americans that we have no hope to find cures for our children because it is too rare to matter.

    ABC News: Top Stories

  • Langerhans cell histiocytosis (LCH) Histiocytosis is a rare blood disease that is caused by an excess of white blood cells called histiocytes. - Articles related to Hip hope from stem cell technique

  • Max 2 years since feb 2008, has been diagnosed with Langerhans cell histiocytosis - Articles related to Hip hope from stem cell technique

  • "We do not understand the apparently increased risk for histiocytosis," Kallen told Reuters

    Yahoo! News: Business - Opinion

  • In histiocytosis, these cells accumulate on bones and other parts of the body, particularly the head and neck, causing a wide range of problems.

    Yahoo! News: Business - Opinion

  • There were 12 cases of various solid cancers and a half-dozen instances of Langerhand histiocytosis -- six times the amount expected prior to the research.

    RedOrbit News - Technology

  • In the first two years, the project also will study osteosarcoma, oral melanoma, malignant histiocytosis, and non-Hodgkin lymphoma.

  • Langerhans' cell histiocytosis (LCH) a rare disorder of the dendritic (immune-system) cells, mortality in children with advanced disease has dropped from 25 to 0 per cent in the past five years. - Telegraph online, Daily Telegraph and Sunday Telegraph

  • Ohga S, Aoki T, Yamada S, Sako M, et al. (1991) Prognosis of children with virus-associated hemophagocytic syndrome and malignant histiocytosis: correlation with levels of serum interleukin-1 and tumor necrosis factor.

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