URÍK, Milan, Pavel HURNIK, Dušan ŽIAK, Josef MACHAČ, Ivo ŠLAPÁK, Oldřich MOTYKA a Petr JABANDŽIEV. Immunohistochemical analysis of retraction pocket pars tensa of tympanic membrane in children. International journal of pediatric otorhinolaryngology. Amsterdam: Elsevier, 2019, roč. 122, JUL 2019, s. 111-116. ISSN 0165-5876. Dostupné z: https://dx.doi.org/10.1016/j.ijporl.2019.04.008. |
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@article{1545096, author = {Urík, Milan and Hurnik, Pavel and Žiak, Dušan and Machač, Josef and Šlapák, Ivo and Motyka, Oldřich and Jabandžiev, Petr}, article_location = {Amsterdam}, article_number = {JUL 2019}, doi = {http://dx.doi.org/10.1016/j.ijporl.2019.04.008}, keywords = {Retraction pocket; Cholesteatoma; Immunohistochemistry; Chidren; Pars tensa}, language = {eng}, issn = {0165-5876}, journal = {International journal of pediatric otorhinolaryngology}, title = {Immunohistochemical analysis of retraction pocket pars tensa of tympanic membrane in children}, url = {http://dx.doi.org/10.1016/j.ijporl.2019.04.008}, volume = {122}, year = {2019} }
TY - JOUR ID - 1545096 AU - Urík, Milan - Hurnik, Pavel - Žiak, Dušan - Machač, Josef - Šlapák, Ivo - Motyka, Oldřich - Jabandžiev, Petr PY - 2019 TI - Immunohistochemical analysis of retraction pocket pars tensa of tympanic membrane in children JF - International journal of pediatric otorhinolaryngology VL - 122 IS - JUL 2019 SP - 111-116 EP - 111-116 PB - Elsevier SN - 01655876 KW - Retraction pocket KW - Cholesteatoma KW - Immunohistochemistry KW - Chidren KW - Pars tensa UR - http://dx.doi.org/10.1016/j.ijporl.2019.04.008 L2 - http://dx.doi.org/10.1016/j.ijporl.2019.04.008 N2 - Aims: Immunohistochemical analysis of retraction pocket pars tensa of tympanic membrane in children. Identification of signs typical for cholesteatoma and support of retraction theory of cholesteatoma. Study design: a prospective study analysing 31 surgically removed retraction pockets. Department: University Hospital, Children's Medical Centre Methods: Retraction pockets processed by a standard process for immunohistochemical analysis. The observed findings were specified using antibodies CD45 LCA (leukocyte common antigen), CD31 (platelet endothelial cell adhesion molecule), D2-40 (marker of lymphatic endothelium), MMP9 (marker of degradation of connective tissue extracellular matrix) and Ki67 (cellular marker of proliferation). Results: All observed parameters except for MMP9 had a significantly higher incidence in retraction pocket stage III compared to stage II according to Charachon. Conclusion: We described immunohistochemical signs of retraction pocket pars tensa of tympanic membrane in children resulting in cholesteatoma. All the observed signs occur in the structure of matrix and perimatrix of cholesteatoma. A significantly higher incidence of all observed parameters except from MMP9 was proved in retraction pocket stage III, unlike in stage II. This observation proves the fact that retraction pocket is a progressive disease and is a procholesteatoma stage. ER -
URÍK, Milan, Pavel HURNIK, Dušan ŽIAK, Josef MACHAČ, Ivo ŠLAPÁK, Oldřich MOTYKA a Petr JABANDŽIEV. Immunohistochemical analysis of retraction pocket pars tensa of tympanic membrane in children. \textit{International journal of pediatric otorhinolaryngology}. Amsterdam: Elsevier, 2019, roč.~122, JUL 2019, s.~111-116. ISSN~0165-5876. Dostupné z: https://dx.doi.org/10.1016/j.ijporl.2019.04.008.
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