title: [Meningioma with extracranial metastases].
abstract: The paper discusses a case of recurrent posterior skull base meningioma with extracranial metastases. Metastases of meningioma may spread through venous system, lymphatic vessels and cerebrospinal fluid, and also via contact route (implantation). Penetration of dura mater of venous sinuses leads to invasion of tumor cells and their spread into pulmonary circulation, system of vena azygos and hemiazygos, vertebral venous plexuses which may facilitate further dissemination of the tumor. Histological examination of recurrent meningiomas requires additional immunohistochemical investigation with estimation of proliferative activity.
authors.forename: V N
authors.initials: VN
authors.lastname: Shimanskiĭ
authors.forename: D L
authors.initials: DL
authors.lastname: Rotin
authors.forename: L V
authors.initials: LV
authors.lastname: Shishkina
authors.forename: I A
authors.initials: IA
authors.lastname: Otarashvili
authors.forename: G L
authors.initials: GL
authors.lastname: Kobiakov
mesh_terms: D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008577:Meningeal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D008579:Meningioma / Q000000981:diagnostic imaging / Q000473:pathology / Q000556:secondary* / Q000601:surgery*; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D012983:Soft Tissue Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000556:secondary* / Q000601:surgery*; D036542:Tomography, Spiral Computed; D016896:Treatment Outcome