title: CEA plasma levels in patients with intracranial tumours.
abstract: 210 patients harbouring an intracranial tumour were tested for CEA plasma levels. It could be shown that this investigation was neither a useful screening test for detecting brain neoplasms nor suitable for follow-up on operated brain tumours. However, with the CEA plasma investigation an additional preoperative test is available for distinguishing between primary and secondary brain tumours. The positive evidence is only 29%, but in case of a CEA plasma value above 5.0 ng/ml a metastasis is indicated with a probability of 91%.
mesh_terms: D001932:Brain Neoplasms / Q000097:blood / Q000175:diagnosis* / Q000556:secondary; D002272:Carcinoembryonic Antigen / Q000032:analysis*; D006801:Humans; D007124:Immunoenzyme Techniques
chemical_list: D002272:Carcinoembryonic Antigen