Diagnostic Value of CT Enhancement Pattern of Focal Liver Masses.
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Date
2018
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Addis Abeba University
Abstract
Objectives: Objectives of the study were to study the Enhancement Pattern of
various hepatic masses using Triphasic CT as diagnostic modality, differentiating
different hepatic masses and to compare our findings with that reported in literature
Methods:A total of 60 patients were seen in this cross-sectional study done in
Department of Radiology,Tikur Anbessa specialized Hospital (TASH) Addis Ababa,
Ethiopia from October, 2017 to September, 2018. All patients underwent Triphasic
CT examination and diagnosis were made by histopathology/typical imaging
findings, follow up, and clinical and lab findings as applicable.
Results: Our study included 60 patients with hepatic focal mass masses; most
common neoplasm was metastases (38.3%) followed by hepatocellular
carcinoma(HCC)which accounted for 31.6 % and hemangioma which accounted for
15% of cases. Peripheral intrahepatic cholangiocarcinoma accounted for 5 % cases.
The enhancement patterns of HCC were as follows: 57.8% demonstrate
heterogeneous hypervascularenhancement inthe arterial phase and totally
hypovascular in the delayed phase, while 36.8% showed homogeneous hypervascular
pattern. Almostall of the HCC (100 %) appeared as totally hypovascularmasses in the
delayed phase. In the case of hemangiomas, 73.3 % showsGlobular peripheral
enhancement in the arterial phase; in the delayed phase, 60 % showed complete
centripetal filling in which is iso vascularto vessels. In the arterial phase,60.8 % of
metastases were hypovascular. In the delayed phase, all (100%) were
hypovascular.Metastases were most commonly hypovascular in all phases (60.8%).
Conclusions: Triphasic CT with its high accuracy is helpful in confident diagnosis of
a hepatic masses. It has an indispensable role in evaluatingandcharacterizinghepatic
masses which helps in guiding appropriate management plan with proper surgical
triage.
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Keywords
Triphasic MDCT; Focal Liver Masses: Detection and Characterization.