[Primary intracranial plasma cell granuloma. Report of two cases]

Investigation of biopsies of a suprasellar tumour in a man, 33 years of age, and a supratentorial tumour in a woman, 18 years of age, resulted in histological diagnosis of intracranial plasma cell granuloma, a rare condition. Polyclonality of the plasma cells involved in the process could be verified by immunohistochemical investigation. Chordoma was clinically assumed in the first case and meningioma in the second. Biological behaviour and dubious prognosis are discussed, with reference being made to relevant literature.