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Karyometric Analysis of Squamous Metaplasia, Dysplasia and Squamous Cell Carcinoma of the Lung

The sequence of precursor lesions for squamous cell carcinoma may be hyperplasia-metaplasia-dysplasia-carcinoma in situ. The aim of this study was to perform a karyometric analysis of squamous metaplasia, moderate dysplasia and squamous cell lung carcinoma. Bronchoscopic biopsies of normal mucosa in...

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Bibliographic Details
Published in:Acta Facultatis Medicae Naissensis 2014-09, Vol.31 (3), p.177-182
Main Authors: Mijović, Žaklina, Pešić, Zoran, Živković, Nikola, Denčić, Tijana, Petrović, Ana Ristić, Stojnev, Slavica
Format: Article
Language:English
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Summary:The sequence of precursor lesions for squamous cell carcinoma may be hyperplasia-metaplasia-dysplasia-carcinoma in situ. The aim of this study was to perform a karyometric analysis of squamous metaplasia, moderate dysplasia and squamous cell lung carcinoma. Bronchoscopic biopsies of normal mucosa in chronic bronchitis patients (n=10), squamous metaplasia (n=10), moderate dysplasia (n=11), squamous cell lung carcinoma (n=48), and normal appearing mucosa surrounding carcinoma (n=11) were retrieved. Three nuclear variables were estimated using an image analysis system. The mean equivalent diameter, nuclear area and volume of equivalent sphere of squamous cell lung carcinoma were significantly larger than in moderate dysplasia, squamous metaplasia and normal bronchial mucosa. Also, the values of equivalent diameter, nuclear area and volume of equivalent sphere were significantly larger in normal appearing mucosa surrounding carcinoma compared to normal mucosa in chronic bronchitis patients. Karyometric analysis may be a helpful ancillary tool in distinguishing squamous cell lung carcinoma from dysplasia, and dysplasia from squamous metaplasia in bronchoscopic biopsy specimens. Sekvence prekursornih lezija planocelularnog karcinoma mogu biti hiperplazija-metaplazija-displazija- karcinom in situ. Cilj rada bio je da se izvrši kariometrijska analiza skvamozne metaplazije, displazije umerenog gradusa i planocelularnog karcinoma pluća. Analizirane su bronhoskopske biopsije normalne mukoze kod bolesnika sa hroničnim bronhitisom (n=10), skvamoznom metaplazijom (n=10), umerenom displazijom (n=11), planocelularnim karcinomom (n=48) i "na izgled normalnom” mukozom u okolini karcinoma (n=11). Ispitivana su tri nuklearna parametra uz pomoć sistema za analizu prikaza. Prosečni ekvivalentni nuklearni dijametar, area i volumen ekvivalentne sfere planocelularnog karcinoma bili su signifikantno veći nego kod umerene displazije, skvamozne metaplazije i normalne bronhijalne mukoze. Vrednosti ekvivalentnog dijametra, areala i volumena ekvivalentne sfere jedara bili su signifikantno veći u “na izgled normalnoj” mukozi kod bolesnika sa planocelularnim karcinomom u odnosu na normalnu mukozu kod bolesnika sa hroničnim bronhitisom. Kariometrijska analiza može biti korisna pomoćna metoda u diferenciranju planocelularnog karcinoma od displazije i displazije od skvamozne metaplazije na bronhoskopskim biopsijskim uzorcima.
ISSN:2217-2521
0351-6083
2217-2521
DOI:10.2478/afmnai-2014-0022