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KMID : 0352519970340010030
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Korea Univercity Medical Journal
1997 Volume.34 No. 1 p.30 ~ p.34
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The Comparative Study of CT Findings and Cell Cytology of Pleural Effusion in Bronchogenic Carcinoma
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오유환
이민진/강은영/정규병
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Abstract
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Pleural effusion is often associated in lung cancer and divided into malignant effusion due to tumor involvement and paramalignant effusion due to a local or systemic effect. When malignant effusion is present the tumor stage is T4 and then,
operation
is not considered. Therefore, determining whether malignant effusion is or not is important for lung cancer staging and treatment of patients. We retrospectively compared CT findings with cell cytology in 37 patients with pleural effusion
associated
with lung cancer. Fourteen patients had proven malignant pleural effusion and 23 patients had proven paramalignant effusion by repeated cell cytology of pleural effusion. Comparing CT findings with cell cytology of pleural effusion, the pleural
thickening at CT was 38% sensitivity and 64% specificity, and the enhancing pleural nodule at CT was 50% sensitivity and 78% specificity. The positive predictive value of enhancing pleural nodule at CT was 70%. In conclusion, although the result
of
cell
cytology is negative for malignancy in pleural effusion associated with lung cancer, malignant effusion should be considered in the presence of enhancing nodules at CT of the pleura.
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KEYWORD
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