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KMID : 0383820060610060547
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Tuberculosis and Respiratory Diseases
2006 Volume.61 No. 6 p.547 ~ p.553
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Comparison of Thinaprep (Liquid-Based Cytology) and Conventional Cytology : Abnormal Lesion on Bronchoscopy
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Lee Jeong-Ho
Yang Jung-Kyung
Jung In-Bum
Lee Jung-Uee
Sul Hae-Jung
Kim Yoon-Mee
Kim Bum-Kyeng
Choi Eu-Gene
Na Moon-Jun
Son Ji-Woong
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Abstract
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Background: Liquid-based cytology is currently known as an effective method, and cervical cytology has been shown to be especially effective from of malignancy detection. In our study, the cytological detection rates of the Thinprep (Liquid-based cytology) and conventional cytology (bronchial washing & brushing) for endobronchial lesions were compared.
Methods: Between July 2005 and September 2005, the data from 30 patients with respiration symptom, who had shown abnormal lesion on bronchoscopy, were collected.
Results: The bronchoscopic biopsy group was consisted of 30 cytodiagnosis specimens, 24 of which were confirmed to be malignant. The others were tuberculosis (4), bronchiectasis and bronchopulmonary fistula (1 each). Of the 24 malignant case, cancer or atypical cells were detected in 19, 17 and 12 of the Thinprep, brushing cytology and washing cytology cases, respectively. None one of the methods detected cancer cells in the non-malignant specimens. Washing cytology has shown sensitivity, specificity, and positive and negative predictive values of 50, 100, 100 and 33.3% respectively. Brushing cytology has shown sensitivity, specificity, and positive and negative predictive values of 70.8, 100, 100 and 46.2%, respectively. Thinprep has shown sensitivity, specificity, and positive and negative predictive values of 79.2, 100, 100 and 54%, respectively.
Conclusions: Thinprep (liquid-based cytology) showed better sensitivity and negative predictive values for the evaluation of lung cancer than conventional cytology. However a large-scale study will be needed in the future.
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KEYWORD
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Thinprep, Conventional cytology, Bronchoscopy, Respiration cytology
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