Histiocyte

• H • Mar 22 05



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Alternative names
Macrophage

Definition

Histiocytes are cells of the immune system that ingest foreign antigens to protect against infection. They are fixed, meaning they remain in one part of the body rather than traveling through the bloodstream.

Histiocytes are found in many organs and connective tissues:

Spleen
Lymph nodes
Brain
Liver (Kupffer cells)
Breast tissue
Alveoli
Tonsils
Serous cavities
Placenta

Histiocytosis involves an abnormal number of histiocytes and may affect the lungs (alveoli), the bones, or the lymphatic system.

Last revised: December 3, 2007
by Martin A. Harms, M.D.

Medical Encyclopedia

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All ArmMed Media material is provided for information only and is neither advice nor a substitute for proper medical care. Consult a qualified healthcare professional who understands your particular history for individual concerns.

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