2002
DOI: 10.1590/s0034-72992002000400002
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Imunoexpressão da citoqueratina 16 e do antígeno nuclear Ki-67 no colesteatoma adquirido da orelha média

Abstract: Introdução: Ocolesteatoma da orelha média é caracterizado pela presença de epitélio escamoso estratificado queratinizado nesta cavidade, causando destruição óssea e podendo levar a complicações. Algumas substâncias como a citoqueratina 16 e o Ki-67, marcadores de proliferação celular, vêm sendo utilizadas para estudar essa doença. A CK 16 é um filamento protéico, situado no citoplasma das células epiteliais, característico de epitélios hiperproliferativos. O Ki-67 é um antígeno nuclear que aparece nas células … Show more

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Cited by 10 publications
(24 citation statements)
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References 16 publications
(21 reference statements)
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“…When looking at the hematoxylin-eosin stained specimens in an optical microscope, it was clear that cholesteatomas consist of keratinized squamous stratified epithelium, with four layers identical to those of thin skin (basal, squamous, granulous, and stratum corneum), lying on a bed of connective tissue that contains fibroblasts, lymphocytes, plasmacytes, and e macrophages. These findings were compatible with those of other authors that looked into cholesteatoma histopathology 1,4,6 . There is some divergence as to the best nomenclature for cholesteatoma epithelium and the connective tissue it lies on.…”
Section: Discussionsupporting
confidence: 93%
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“…When looking at the hematoxylin-eosin stained specimens in an optical microscope, it was clear that cholesteatomas consist of keratinized squamous stratified epithelium, with four layers identical to those of thin skin (basal, squamous, granulous, and stratum corneum), lying on a bed of connective tissue that contains fibroblasts, lymphocytes, plasmacytes, and e macrophages. These findings were compatible with those of other authors that looked into cholesteatoma histopathology 1,4,6 . There is some divergence as to the best nomenclature for cholesteatoma epithelium and the connective tissue it lies on.…”
Section: Discussionsupporting
confidence: 93%
“…These patterns were assessed qualitatively (absent and present) and, when present, were analyzed semi-quantitatively and graded in mild, moderate, and severe depending on their intensity 4,6 . When looking at the hematoxylin-eosin stained specimens in an optical microscope, it was clear that cholesteatomas consist of keratinized squamous stratified epithelium, with four layers identical to those of thin skin (basal, squamous, granulous, and stratum corneum), lying on a bed of connective tissue that contains fibroblasts, lymphocytes, plasmacytes, and e macrophages.…”
Section: Discussionmentioning
confidence: 99%
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