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Foreign body giant cells are involved in the foreign body reaction, phagocytosis, and subsequent degradation of biomaterials which may lead to failure of the implanted material. [4] When produced, the FBGC's place themselves along the surface of the implantation, and will remain there for as long as the foreign material remains in the body. [1]
Foreign body granuloma formation consists of protein adsorption, macrophages, multinucleated foreign body giant cells (macrophage fusion), fibroblasts, and angiogenesis. It has also been proposed that the mechanical property of the interface between an implant and its surrounding tissues is critical for the host response.
A giant cell (also known as a multinucleated giant cell, or multinucleate giant cell) is a mass formed by the union of several distinct cells (usually histiocytes), often forming a granuloma. [ 1 ] Although there is typically a focus on the pathological aspects of multinucleate giant cells (MGCs), they also play many important physiological roles.
Granuloma formation and multinucleated giant cells The main purpose of cytological examination in granulomatous dermatitis is to detect infectious agents. Foreign body materials are very specific for foreign body granuloma. Granuloma annulare: Palisading granuloma and mucin Necrobiosis lipoidica: Palisading granuloma and necrobiotic materials
Touton giant cells, being multinucleated giant cells, can be distinguished by the presence of several nuclei in a distinct pattern. This pattern is described as a ring-like or wreath-like in the center of a cell. These cells contain a ring of nuclei surrounding a central homogeneous cytoplasm, while foamy cytoplasm surrounds the nuclei.
Coenocyte of Sphaeroforma arctica Botrydium, showing a coenocytic body. A coenocyte (/ ˈ s iː n ə ˌ s aɪ t /) is a multinucleate cell which can result from multiple nuclear divisions without their accompanying cytokinesis, in contrast to a syncytium, which results from cellular aggregation followed by dissolution of the cell membranes inside the mass. [1]
Villoglandular adenocarcinoma of the cervix is a rare type of cervical cancer that, in relation to other cervical cancers, is typically found in younger women and has a better prognosis. [1] A similar lesion, villoglandular adenocarcinoma of the endometrium, may arise from the inner lining of the uterus, the endometrium. [2]
Reed–Sternberg cells (also known as lacunar histiocytes for certain types) are distinctive, giant cells found with light microscopy in biopsies from individuals with Hodgkin lymphoma. They are usually derived from B lymphocytes , classically considered crippled germinal center B cells.