title: Primary cerebral lymphoma: the "ghost tumor". Case report.
abstract: A case of primary cerebral lymphoma is presented. The particular biological features of these tumors may pose a special problem. In this case, the lesion was diagnosed on computerized tomography (CT) but was not found at surgery. The disappearance of the lesion was associated with a long period of corticosteroid therapy between CT diagnosis and the operation.
mesh_terms: D001932:Brain Neoplasms / Q000000981:diagnostic imaging* / Q000188:drug therapy / Q000601:surgery; D003907:Dexamethasone / Q000627:therapeutic use; D006801:Humans; D008223:Lymphoma / Q000000981:diagnostic imaging* / Q000188:drug therapy / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011859:Radiography
chemical_list: D003907:Dexamethasone