DIAGNOSTIC ACCURACY OF COMPUTERISED TOMOGRAPHY IN DIFFERENTIATING BETWEEN BENIGN AND MALIGNANT LUNG MASSES AND NEED FOR HISTOPATHOLOGICAL STUDIES FOR FINAL DIAGNOSIS.

DR.MADHURIMA HOME

Volume : VI, Issue : XI, November - 2016

DIAGNOSTIC ACCURACY OF COMPUTERISED TOMOGRAPHY IN DIFFERENTIATING BETWEEN BENIGN AND MALIGNANT LUNG MASSES AND NEED FOR HISTOPATHOLOGICAL STUDIES FOR FINAL DIAGNOSIS.

Dr. Madhurima Home

Abstract :

OBJECTIVE: To analyse role of CT in differentiating benign from malignant lung mass and to establish the sensitivity, specificity, positive and negative predictive values of CT–thorax in diagnosing malignant masses. METHOD: Retrospective study in 100 patients who have undergone CT scan for lung mass. Based on CT features a provisional diagnosis was made, matched with pathology reports and results statistically analysed. RESULTS: The diagnostic accuracy of CT in diagnosing malignant lung lesions came out as 85%; 96% sensitive, 70% specific, 80% PPV and 93.5% NPV . CONCLUSIONS: CT is a highly sensitive but moderately specific diagnostic tool for evaluation of lung masses. High negative predictive value shows that benign lesions are diagnosed fairly accurately. So, ideally CT should be the first line diagnostic modality in differentiating benign from malignant conditions. Confirmatory histopathology can be used for appropriate therapy in malignancy and in indeterminate category lesions.