Objective To investigate the clinicopathologic features,immunophenotype and differential diagnosis of primary hepatic histocytic sarcoma( HS). Methods The clinical and pathological data were reviewed in 2 cases of HS.The CT image,histological presentation,and the immunohistochemical staining( S-P method) were analyzed,with the review of the relevant literature. Results Two patients were male,aged 50 and 51 years respectively. Both patients had right upper abdominal pain,and the imaging showed that the tumor...