[Electronmicroscopic findings in a malignant hepatoma after oral contraceptives (author's transl)].

In this paper we report the electronmicroscopic findings in a hepatocellular carcinoma of a 24 years old woman after taking oral contraceptives. We saw alterations of the nucleus (finger-like or finger-formed nuclei, nuclear invaginations and intranuclear vesicular membranbodies), changes of the mitochondries (number, polymorphy and osmiophil bodies) as well as changes of lysosomes (myelinshaped residualbodies). The observed and described changes are not specific for malignant tumors of the liver.