Aniruddha Basu1, Rupak Bhuyan2, Deep Kumar Roy3

Hepatic mass lesions represent a spectrum of disorders congenital, infective, neoplastic, and otherwise. The use of non-contrast and contrast enhanced CT enables to detect the liver lesions more adequately and detects other associated effects if any. CT delineates affected segments in the disease process and the extent of involvement.
To study of effectiveness of CT in studying the CT patterns of different hepatic mass lesions and to correlate CT findings in hepatic mass lesions in various patients with FNAC and HPE findings.
50 cases of clinically suspected hepatic mass lesions were scanned by Philips 16 slice CT MX-16 EVO within the period of July 2015 - 1st week of July 2016 in JMCH, Jorhat. All OPD and indoor patients of both sexes and patients in whom hepatic mass lesions were detected with other modalities of imaging were included. Hydatid cyst and haemangioma cases were excluded due to risk of anaphylaxis and haemorrhage during FNAC. All the patients were scanned pre and post IV contrast administration and data was recorded FNAC of the lesions were done by 20 G Chiba or 18 G Tru-Cut needle. The scans were viewed by two senior radiologists to minimise interpretative errors.
In the 50 cases studied, 25 patients (50%) had metastatic lesions, 10 patients (20%) had hepatocellular carcinoma, 3 patients (6%) had hepatoblastoma, 11 patients (22%) had liver abscesses, 1 patient (2%) had polycystic liver disease. These correlated well with CT-guided FNAC findings where FNAC was positive in cases as follows: Metastatic lesions 23 patients (46%), hepatocellular carcinoma 8 patients (16%), hepatoblastoma 3 patients (6%), liver abscesses 9 patients (18%), 1 patient (2%) polycystic liver disease.
In this study, CT proved to be the diagnostic tool of choice for hepatic mass lesions. CT-guided FNAC and HPE findings correlated well with the CT diagnosis of hepatic masses. CT proved to be a fast imaging method, easily available modality, excellent in detecting lesions, calcifications. Drawbacks of CT-included radiation to patient and contrast reactions, the latter not encountered in this study.