Histiocyte

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.



Alternative Names:
Macrophage


The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. Copyright 2004 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.