epithelioid

简明释义

英[ˌepɪˈθiːlɪˌɔɪd]美[ˌepəˈθilɪɔɪd]

adj. 上皮样的，上皮状的

英英释义

单词用法

同义词

反义词

例句

1.The vessels were lined by epithelioid endothelial cells with abundant eosinophilic cytoplasm.

血管内衬胞质丰富、深嗜伊红染的上皮样内皮细胞。

2.Objective To investigate the clinicopathological characteristics and biologic behavior of epithelioid hemangioma in oral and maxillofacial regions.

目的探讨口腔颌面部上皮样血管瘤的临床、病理学特征及生物学行为。

3.We describe 2 cases of malignant melanotic epithelioid renal neoplasms bearing TFE3 gene fusions.

我们描述了2例发生TFE3基因融合的恶性黑色素性上皮样肾肿瘤。

4.This study was to investigate the clinical features, diagnosis, treatment, and prognosis of epithelioid sarcoma.

本研究旨在探讨上皮样肉瘤的临床特点、诊断、治疗和预后。

5.Phagocytic particles were in the cytoplasm of fibroblast like cells, epithelioid cells and macrophages.

描述了巨噬细胞演变为上皮样细胞、纤维母细胞样细胞和成纤维细胞的过程。

6.Purpose To study diagnosis and differential diagnosis of primary epithelioid hemangioendothelioma of lymph node.

目的探讨淋巴结原发上皮样血管内皮瘤的诊断及鉴别诊断。

7.The pathologist noted the presence of epithelioid 上皮样 cells in the biopsy sample.

病理学家注意到活检样本中存在epithelioid 上皮样细胞。

8.In granulomatous inflammation, epithelioid 上皮样 macrophages are often observed.

在肉芽肿性炎症中，通常会观察到epithelioid 上皮样巨噬细胞。

9.The tumor was characterized by clusters of epithelioid 上皮样 cells that resembled normal epithelial tissue.

该肿瘤的特征是有类似正常上皮组织的epithelioid 上皮样细胞簇。

10.Researchers are studying the role of epithelioid 上皮样 cells in chronic inflammatory diseases.

研究人员正在研究epithelioid 上皮样细胞在慢性炎症疾病中的作用。

11.The formation of epithelioid 上皮样 cells is a key feature in the healing process of wounds.

epithelioid 上皮样细胞的形成是伤口愈合过程中的一个关键特征。

作文

The term epithelioid refers to a specific type of cell that resembles epithelial cells, which are the cells that line the surfaces and cavities of organs in the body. These cells play a crucial role in protection, secretion, and absorption. In the context of pathology, epithelioid cells are often associated with granulomatous inflammation, a response to chronic infection or irritation. This type of inflammation is characterized by the formation of granulomas, which are small clusters of immune cells that form in response to foreign substances. In a typical granulomatous response, the body attempts to wall off substances it perceives as harmful, such as bacteria, fungi, or even non-living irritants like silica. Within these granulomas, one can find a variety of immune cells, including macrophages, lymphocytes, and notably, epithelioid cells. These epithelioid cells are derived from activated macrophages that have undergone a transformation to resemble epithelial cells. This transformation is essential as it allows these immune cells to better encapsulate and isolate the offending agent, thus preventing its spread throughout the body. The presence of epithelioid cells is particularly significant in certain diseases, such as tuberculosis, sarcoidosis, and leprosy. In tuberculosis, for example, the bacteria Mycobacterium tuberculosis induce a strong immune response that leads to the formation of caseating granulomas, which contain numerous epithelioid cells. The role of these cells in the immune response is critical, as they help to form a barrier against the infection, but they can also contribute to tissue damage if the response is excessive or misdirected. In addition to their role in infection, epithelioid cells can also be involved in various non-infectious conditions. For instance, in the case of foreign body granulomas, materials such as sutures or talc can provoke an immune response leading to the formation of granulomas populated by epithelioid cells. This indicates that the body recognizes these materials as foreign and attempts to isolate them, showcasing the versatility and adaptability of the immune system. Understanding the function and significance of epithelioid cells is crucial for medical professionals, especially pathologists and immunologists. They serve as indicators of the underlying processes occurring within the body in response to various stimuli. Furthermore, the study of these cells can provide insights into the mechanisms of disease progression and resolution, potentially leading to more effective treatments. In conclusion, epithelioid cells play a vital role in the immune response, particularly in the formation of granulomas during chronic inflammation. Their ability to resemble epithelial cells allows them to effectively participate in isolating and managing infections or irritants. As research continues, the understanding of epithelioid cells will undoubtedly expand, revealing more about their functions and implications in health and disease.

术语epithelioid指的是一种特定类型的细胞，这种细胞类似于上皮细胞，而上皮细胞是衬托身体器官表面和腔体的细胞。这些细胞在保护、分泌和吸收方面发挥着至关重要的作用。在病理学的背景下，epithelioid细胞通常与肉芽肿性炎症相关，这是一种对慢性感染或刺激的反应。这种类型的炎症的特征是形成肉芽肿，肉芽肿是对外来物质形成的小免疫细胞簇。 在典型的肉芽肿反应中，身体试图将其认为有害的物质隔离开来，例如细菌、真菌，甚至非生物刺激物如二氧化硅。在这些肉芽肿内，可以发现多种免疫细胞，包括巨噬细胞、淋巴细胞，尤其是epithelioid细胞。这些epithelioid细胞源自活化的巨噬细胞，它们经历了一种转变，变得类似于上皮细胞。这种转变是至关重要的，因为它使这些免疫细胞能够更好地包裹和隔离有害物质，从而防止其在全身扩散。 epithelioid细胞的存在在某些疾病中尤为重要，例如结核病、肉芽肿病和麻风。例如，在结核病中，细菌分枝杆菌引发强烈的免疫反应，导致形成含有大量epithelioid细胞的干酪性肉芽肿。这些细胞在免疫反应中的作用至关重要，因为它们帮助形成对感染的屏障，但如果反应过度或错误，可能也会导致组织损伤。 除了在感染中的作用外，epithelioid细胞还可以参与各种非感染性疾病。例如，在异物肉芽肿的情况下，缝合线或滑石等材料可以引发免疫反应，导致形成由epithelioid细胞聚集的肉芽肿。这表明身体将这些材料视为外来物，并试图将其隔离，展示了免疫系统的多样性和适应性。 理解epithelioid细胞的功能和重要性对于医疗专业人员，尤其是病理学家和免疫学家至关重要。它们作为身体对各种刺激所发生的基本过程的指标。此外，对这些细胞的研究可以提供有关疾病进展和解决机制的见解，从而可能导致更有效的治疗。 总之，epithelioid细胞在免疫反应中发挥着重要作用，尤其是在慢性炎症期间肉芽肿的形成中。它们像上皮细胞一样的能力使它们能够有效参与隔离和管理感染或刺激。随着研究的继续，对epithelioid细胞的理解无疑会扩展，揭示出它们在健康和疾病中的功能和影响。