[Detection of HBs Ag in bone's metastatic malignant hepatoma (author's transl)]

A case of metastatic malignant hepatoma in bone, developed in a Vietnamen woman, is reported. Indirect immunofluorescence and orcein staining detect HBs Ag in cytoplasm of many tumor cells. This finding raises pathogenic problems, in particular that of the responsability of heaptitis B virus in the aetiology of certain hepatic tumours.