Multi-slice CT diagnosis of primary hepatic angiosarcoma

Objective:To investigate the CT manifestations of primary hepatic angiosarcoma(PHA).Methods:The clinical and CT materials of 5 patients with pathology proven primary hepatic angiosarcoma(PHA) were retrospectively analyzed.All of the 5 patients underwent spiral CT before and after contrast enhancement.Results:Of these 5 pateints,there were dominant huge mass(n=4) and diffuse nodules(n=1).Four of the lesions located at right hepatic lobe and one at both lobes;daughter foci could be assessed in 2 cases.In the arterial phase after enhancement,central and peripheral nodular enhancement with non-enhancement of part of the septa was found in 2 cases,no marked enhancement in 2 cases and central spotty enhancement in 1 case.In portal venous phase,peripheral nodular enhancement was showed in 4 cases,cotton-like enhancement with filling-in accompanying with patchy non-enhancement in 1 case.During the delayed phase,the tendency of obvious filling-in was showed in 4 cases,peripheral nodular enhancement in 1 case.The necrotic area in all 5 cases showed non-enhancement.Conclusion:Certain CT characteristics can be revealed in PHA,yet with low specificity,the final diagnosis depends on pathology.