\nLymphoepithelioma type carcinoma<\/span> skin (LELCS) is very rare primary<\/span> skin neoplasm<\/span> which occurs most frequently in the sunexposed skin<\/span> of the head and neck in older people. LELCS histogenesis remains controversial as to whether it has attached<\/span> origin or represents an inflamed scaly<\/span> cell carcinoma (SCC).<\/p>\n<\/span>\nHistology<\/span> of carcinoma of the lymphoepithelioma type<\/span><\/h2>\nIn lymphoepithelioma-type carcinoma, sections show atypical<\/span> epithelioid<\/span> forming cells well defined<\/span> nests surrounded by dense lymphocytic<\/span> inflammation<\/span>. High power view shows bad differentiated<\/span> lymphocyte carcinoma infiltration<\/span> (Figures 1-3). Perineural<\/span>, lymphovascular and subcutaneous<\/span> Invasion is common.<\/p>\n\n<\/span>Lymphoepithelioma-type carcinoma pathology<\/span><\/h5>\n<\/section>\n\n\n
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Figure 1<\/p>\n
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Figure 2<\/p>\n
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figure 3<\/p>\n<\/p><\/div>\n<\/section>\n
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<\/span>Special studies for lymphoepithelioma-type carcinoma<\/span><\/h2>\nImmunohistochemical studies in lymphoepithelioma-type carcinoma reveal curb<\/span> positivity in epithelioid cells. Bookmarks to discard lymphoid<\/span> (LCA), melanocytic<\/span> (S100), and neuroendocrine<\/span> (CD56, synaptophysin, chromogranin) may be required. Epstein-Barr, encoded by the small virus RNA<\/span> (EBER) in the place<\/span> hybridization for Epstein-Barr virus (EBV) infection<\/span> can be useful to discard metastasis<\/span> from a nasopharyngeal<\/span> lymphoepithelioma<\/p>\n\n
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<\/span>\nDifferential diagnosis<\/span> of carcinoma of the lymphoepithelioma type<\/span><\/h2>\nInflamed Squamous Cell Carcinoma (SCC): Whether lymphoepithelioma-like carcinoma is just an inflamed SCC is debated. Overlying actinic dysplasia<\/span><\/span> and of course flaky differentiation<\/span> would favor SCC.<\/p>\nLymphoepithelioma metastatic<\/span> to the skin - "Lymphoepithelioma" is a primary tumor<\/span> of the nasopharynx<\/span>. EBV is generally integrated into these nasopharyngeal tumors and this can be done by in situ hybridization.<\/p>\n<\/section>","protected":false},"excerpt":{"rendered":"Tipo linfoepitelioma carcinoma de la piel (LELCS) es muy raro primario piel neoplasma que ocurre con mayor frecuencia en el solpiel expuesta de la cabeza y el cuello en personas…<\/p>","protected":false},"author":8,"featured_media":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"footnotes":""},"categories":[204],"tags":[205],"class_list":["post-16686","wiki","type-wiki","status-publish","format-standard","category-glosario-definiciones","tag-patologia"],"_links":{"self":[{"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/wiki\/16686","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/types\/wiki"}],"author":[{"embeddable":true,"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/comments?post=16686"}],"version-history":[{"count":0,"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/wiki\/16686\/revisions"}],"wp:attachment":[{"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/media?parent=16686"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/categories?post=16686"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/tags?post=16686"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}