• A histiocyte is a vertebrate cell that is part of the mononuclear phagocyte system (also known as the reticuloendothelial system or lymphoreticular system)...
    6 KB (609 words) - 12:00, 10 August 2024
  • Thumbnail for Epithelioid cell
    Epithelioid cells (also called epithelioid histiocytes) are derivatives of activated macrophages resembling epithelial cells. Structurally, epithelioid...
    19 KB (2,118 words) - 07:53, 6 August 2024
  • The Histiocyte Society is an international network of people that co-ordinate studies of the histiocytoses, which it has divided into Langerhans cell histiocytosis...
    3 KB (215 words) - 10:23, 20 February 2024
  • T-cell/histiocyte-rich large B-cell lymphoma (THRLBCL) is a malignancy of B cells. B-cells are lymphocytes that normally function in the humoral immunity...
    18 KB (2,173 words) - 18:04, 7 September 2023
  • lymph nodes and the spleen. The Kupffer cells of the liver and tissue histiocytes are also part of the MPS. The mononuclear phagocyte system and the monocyte...
    5 KB (466 words) - 15:19, 14 August 2024
  • Thumbnail for Langerhans cell histiocytosis
    histiocytoses, which are characterized by an abnormal proliferation of histiocytes (an archaic term for activated dendritic cells and macrophages). These...
    38 KB (4,022 words) - 20:34, 29 November 2024
  • Thumbnail for Rosai–Dorfman disease
    is a rare disorder of unknown cause that is characterized by abundant histiocytes in lymph nodes or other locations including the skin, sinuses, brain...
    11 KB (1,078 words) - 05:21, 15 October 2024
  • Thumbnail for Erdheim–Chester disease
    abnormal multiplication of a specific type of white blood cells called histiocytes, or tissue macrophages (technically, this disease is termed a non-Langerhans-cell...
    22 KB (2,230 words) - 07:46, 26 November 2024
  • In medicine, histiocytosis is an excessive number of histiocytes (tissue macrophages), and the term is also often used to refer to a group of rare diseases...
    9 KB (726 words) - 10:12, 12 August 2024
  • Thumbnail for Histiocytoma (dog)
    in the dog is a benign tumor. It is an abnormal growth in the skin of histiocytes (histiocytosis), a cell that is part of the immune system. A similar...
    7 KB (697 words) - 08:48, 6 March 2024
  • Hofbauer cells are oval eosinophilic histiocytes with granules and vacuoles found in the placenta, which are of mesenchymal origin, in mesoderm of the...
    5 KB (430 words) - 03:07, 16 October 2024
  • Thumbnail for Chronic multifocal Langerhans cell histiocytosis
    internationally recognised. In 1987, the Histiocyte Society published their classification of the histiocyte disorders together with criteria for diagnosis...
    16 KB (1,588 words) - 19:53, 23 August 2024
  • can be associated with the gene APOE. It can also be acquired. Sea-blue histiocyte syndrome is seen in patients receiving fat emulsion as a part of long-term...
    3 KB (287 words) - 12:38, 17 December 2020
  • Thumbnail for Syphilis
    infiltrate (shown in the red box) in the papillary dermis. The blue arrow points to a tissue histiocyte and the read arrows to two dermal lymphocytes....
    98 KB (10,403 words) - 05:22, 21 December 2024
  • Thumbnail for Diffuse large B-cell lymphoma
    are often accompanied by small non-malignant T-cell lymphocytes and histiocytes that have a reactive morphology. The World Health Organization, 2016...
    69 KB (8,143 words) - 23:37, 9 November 2024
  • Thumbnail for Macrophage
    They take various forms (with various names) throughout the body (e.g., histiocytes, Kupffer cells, alveolar macrophages, microglia, and others), but all...
    94 KB (10,342 words) - 09:46, 21 November 2024
  • Thumbnail for Crohn's disease
    Tissue stain of a granuloma in the colonic mucosa due to Crohn's disease, consisting of an aggregate of histiocytes in the center of the image....
    70 KB (7,955 words) - 20:39, 17 December 2024
  • Thumbnail for Xanthoma
    diabetes. Xanthoma disseminatum: a rare xanthoma consisting of non-X histiocytes on flexural (folded) surfaces, associated with diabetes insipidus. Verrucous...
    8 KB (725 words) - 14:34, 15 December 2024
  • Thumbnail for B-cell lymphoma
    DLBCL variants or sub-types of Primary mediastinal B-cell lymphoma T cell/histiocyte-rich large B-cell lymphoma Primary cutaneous diffuse large B-cell lymphoma...
    11 KB (975 words) - 14:43, 5 December 2024
  • Thumbnail for Tumors of the hematopoietic and lymphoid tissues
    (DLBCL), NOS Germinal centre B-cell subtype Activated B-cell subtype T-cell/histiocyte-rich large B-cell lymphoma Primary DLBCL of the CNS Primary cutaneous...
    24 KB (2,329 words) - 20:43, 2 October 2024
  • Thumbnail for Mantle cell lymphoma
    contours of the medium-sized lymphoma cells and the presence of a pink histiocyte. By immunohistochemistry the lymphoma cells expressed CD20, CD5 and cyclin...
    41 KB (4,549 words) - 08:59, 25 January 2024
  • Thumbnail for Reed–Sternberg cell
    Reed–Sternberg cells (also known as lacunar histiocytes for certain types) are distinctive, giant cells found with light microscopy in biopsies from individuals...
    6 KB (697 words) - 20:37, 1 December 2024
  • Thumbnail for Inflammation
    in the involved tissue, mainly resident macrophages, dendritic cells, histiocytes, Kupffer cells and mast cells. These cells possess surface receptors...
    97 KB (9,827 words) - 07:46, 20 December 2024
  • Thumbnail for Kikuchi disease
    lymph node with Kikuchi disease showing the characteristic features (abundant histiocytes, necrosis without neutrophils). H&E stain. Specialty Angiology ...
    11 KB (1,177 words) - 05:40, 23 September 2024
  • A histiocytoma is a tumour consisting of histiocytes. Histiocytes are cells that are a part of the mononuclear phagocytic system, a part of the body's...
    4 KB (385 words) - 02:24, 31 January 2024
  • Thumbnail for Aphthous stomatitis
    vascularity and a mixed inflammatory infiltrate composed of lymphocytes, histiocytes and polymorphonuclear leukocytes. The epithelium on the margins of the...
    50 KB (5,158 words) - 23:37, 14 December 2024
  • Histiocytic sarcoma is a tumor derived from histiocytes. The tumor is often positive for CD163 and can appear in the thyroid. However, in some cases it...
    2 KB (139 words) - 05:22, 23 July 2024
  • Thumbnail for Hemophagocytic lymphohistiocytosis
    for various underlying contributors.[citation needed] The International Histiocyte Society has collected the published consensus management documents for...
    29 KB (3,306 words) - 22:34, 12 November 2024
  • Thumbnail for Phagocyte
    osteoclasts Gut and intestinal Peyer's patches macrophages Connective tissue histiocytes, macrophages, monocytes, dendritic cells Liver Kupffer cells, monocytes...
    75 KB (8,281 words) - 02:06, 9 October 2024
  • Thumbnail for Extrapulmonary tuberculosis
    tuberculosis of the duodenum. Lamina propria is stuffed with wall-to-wall histiocytes. This Kinyoun carbolfuchsin stain shows innumerable acid-fast bacilli...
    6 KB (637 words) - 01:30, 2 October 2024