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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.
Multinucleate cells (also known as multinucleated cells or polynuclear cells) are eukaryotic cells that have more than one nucleus, i.e., multiple nuclei share one common cytoplasm. Mitosis in multinucleate cells can occur either in a coordinated, synchronous manner where all nuclei divide simultaneously or asynchronously where individual ...
Histopathology of giant-cell myocarditis, with multinucleated giant cells. H&E stain. Idiopathic giant-cell myocarditis (IGCM) is a cardiovascular disease of the muscle of the heart . The condition is rare; [2] however, it is often fatal and there is no proven cure because of the unknown nature of the disorder.
The xanthogranulomatous process (XP), is a form of acute and chronic inflammation characterized by an exuberant clustering of foamy macrophages among other inflammatory cells. Localization in the kidney and renal pelvis has been the most frequent and better known occurrence followed by that in the gallbladder but many others have been ...