histiocytosis

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his·ti·o·cy·to·sis

 (hĭs′tē-ō′sī-tō′sĭs)
n. pl. his·ti·o·cy·to·ses (-sēz)
Any of several diseases characterized by the abnormal proliferation of histiocytes in the tissues or organs.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.histiocytosis - a blood disease characterized by an abnormal multiplication of macrophages
blood disease, blood disorder - a disease or disorder of the blood
Hand-Schuller-Christian disease, Schuller-Christian disease - inflammatory histiocytosis associated with disturbance of cholesterol metabolism; occurs chiefly in young children and is characterized by cystic defects of the skull and diabetes insipidus
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Translations

histiocytosis

n histiocitosis f
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
Langerhans cell histiocytosis (LCH), formerly known as histiocytosis X, is a wide spectrum of clinical disorders involving abnormal accumulation of Langerhans cells in various organs.
Allen, "Progress in understanding the pathogenesis of Langerhans cell histiocytosis: back to Histiocytosis X?" British Journal of Haematology, vol.
They were negative of CD1a, ruling out histiocytosis X. The lymphocytes were a mixture of T and B cells.
Previously termed "histiocytosis X," Langerhans cell histiocytosis (LCH) is a rare disorder characterized by intense and abnormal proliferation of bone marrow-derived immature myeloid dendritic cells-Langerhans cells (LCs) in the skin, bone, lymph nodes, and other organs [1].
[1] It was previously classified as histiocytosis X. Patients with the disease usually present with massive painless cervical lymphadenopathy and fever.
Early pleural effusion in histiocytosis X. Arch Intern Med 1979;139:934-6.
Langerhans cell histiocytosis (formerly called histiocytosis X by Lichtenstein in 1953) refers to a group of disorders that are characterized by proliferation of cytologically benign histiocytes.
Pulmonary histiocytosis X: pulmonary function and exercise pathophysiology.
It is one of the three sub types of Langerhans cell histiocytosis formerly called as histiocytosis x. LCH is a rare proliferative disorders of bone marrow-derived antigen-presenting cells of the dendritic cell line, also known as Langerhans cells.
Pulmonary histiocytosis X: evaluation with high-resolution CT.
Previously known as histiocytosis X, the disorder's name was changed to LCH as the primary cell involved was elucidated.