1986
DOI: 10.1590/s0036-46651986000600008
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Histopatologia da leishmaniose tegumentar por Leishmania braziliensis braziliensis: 4. Classificação histopatológica

Abstract: RESUMOOs A A. analisaram as alterações histológicas encontradas em 162 casos de Leishmaniose Tegumentar da localidade de Três Braços, Estado da Bahia, dos quais 131 (80,9%) eram de portadores de lesões cutâneas e 31 (19,1%) de portadores de lesões mucosas. Analisaram, também, o comportamento clínico dos cinco padrões histopatológicos, já antes descritos, em relação à terapêutica. O melhor prognóstico esteve sempre ligado ao padrão de Reação Exsudativa e Granulomatosa, ou seja, a uma fase na qual o organismo, t… Show more

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Cited by 29 publications
(29 citation statements)
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“…In 26.03% of these cases we also identified Langhans giant cells and/or foreign body giant cell formation, but without necrotic granuloma-like formations (unorganized granuloma). These results are consistent with histological patterns previously described as type I (exudative-cellular reaction without granuloma) and type IV (exudative-granulomatous reaction with unorganized granuloma) [32], [33]. Thus, a typical tuberculoid granuloma (organized granuloma) composed of epithelioid cells, with or without giant cell formations with central necrotic areas, was not found.…”
Section: Discussionsupporting
confidence: 92%
“…In 26.03% of these cases we also identified Langhans giant cells and/or foreign body giant cell formation, but without necrotic granuloma-like formations (unorganized granuloma). These results are consistent with histological patterns previously described as type I (exudative-cellular reaction without granuloma) and type IV (exudative-granulomatous reaction with unorganized granuloma) [32], [33]. Thus, a typical tuberculoid granuloma (organized granuloma) composed of epithelioid cells, with or without giant cell formations with central necrotic areas, was not found.…”
Section: Discussionsupporting
confidence: 92%
“…Type III and IV of Magalhaes' classification 21 have been found as the most common patterns in 21/73 (28.7%) and 32/73 (43.8%) respectively of our LCL cases caused by L. (L.) mexicana 5 .…”
Section: Introductionmentioning
confidence: 53%
“…Sections were stained with hematoxylin and eosin. Histopathological findings were grouped in patterns according to a classification proposed by MAGALHAES et al 21 . The following five histopathological patterns were defined as having occurred and it has been done in CL patients infected with L. (L.) mexicana: type I) exudative-cellular reaction due to infiltration of histiocytes, lymphocytes, and plasma cells, without granuloma; type II) exudative-necrotic reaction, characterized by cellular infiltration, and necrosis and no granulomatous response; type III) exudative and necrotic-granulomatous reaction corresponding to the pattern described as chronic granulomatous inflammation with or without necrosis; type IV) exudative granulomatous reaction (unorganized granuloma) without necrosis characterized by the presence of an unorganized granulomatous reaction; type V) exudative tuberculoid reaction in which a typical tuberculoid granuloma (organized) is formed.…”
Section: Animalsmentioning
confidence: 99%
“…Tissues were then immersed in 10% formol, dehydrated through a gradient of crescent alcohol, clarifi ed in xylene, and embedded in paraffi n. Samples were sectioned at 3μm by using a HYRAX M60 microtome (Carl Zeiss, Germany), deparaffi nized in xylene, hydrated in decreasing concentrations of alcohol, and stained with hematoxylin-eosin. Lesions were then scored by pathologists who were blinded to the study according to the criteria defi ned by Magalhães (21) for cellular exudative reaction (CER), granulomatous exudative reaction (GER), necrotic exudative reaction (NER), granulomatous-necrotic exudative reaction (GNER), and tuberculoid exudative reaction (TER).…”
Section: Histopathologymentioning
confidence: 99%