Characterization of Hepatobiliary Masses: A Comparative Study of Ultrasound versus Computed Tomography

ABSTRACT

Detecting and characterization of hepatobiliary masses is one of the most confusing and controversial challenges in imaging today. Aims and objectives: To evaluate the role of Ultrasound and Computed Tomography in hepatobiliary masses and know the exact site of origin of lesion and its extension into surrounding structures. Methods: In this study, 100 cases of hepatobiliary masses were subjected to with USG and CECT abdomen. Imaging findings were evaluated and tabulated and correlated with the histopathological findings, surgical findings and follow up. The findings were checked and statistically tabulated. Results: Out of a total 100 patients included for study, most patients were in age range of 51 – 60 years. Males Females ratio was 55 45. Out of 100 cases 73% were hepatic masses, 18% gall bladder masses and 8% common bile duct masses. 51 being true benign and 49 lesions being true malignant. Sensitivity (%) and Specificity (%) of diagnosing these lesions on USG was 84.5% and on 86.6% respectively. Sensitivity (%) and Specificity (%) of diagnosing these lesions on CT was 92.2% and on 94.8% respectively. Conclusion: Hepatobiliary masses remain a diagnostic challenge. These lesions are frequently caused by benign, malignant and metastatic etiologies. We conclude that USG plays an important role as an initial screening modality and as an adjunct to CECT and Triphasic CT in the evaluation of hepatobiliary masses.