title: An incidental pulmonary meningioma revealing an intracranial meningioma: primary or secondary lesion?
abstract: A 68-year-old man underwent a resection of the right middle lobe for a solitary lesion detected at computed tomography. The histologic result was suggestive for a pulmonary meningioma. Although the result of a preoperative brain computed tomography scan was negative, magnetic resonance imaging showed a skull-base meningioma. On the basis of the absence of symptoms, we decided to observe the intracranial meningioma. At 3 years of follow-up, the patient was free of recurrence and the cerebral lesion was stable. Primary pulmonary meningioma and benign meningioma metastasis share identical microscopic findings, and only a central nervous system radiologic study allows their distinction. The pulmonary lesion in our patient was classified as a meningioma metastasis.
authors.affiliation: Department of Surgery, Ospedale Alessandro Manzoni, Lecco, Italy. Electronic address: mee.chiarelli@gmail.com.
authors.forename: Marco
authors.initials: M
authors.lastname: Chiarelli
authors.affiliation: Department of Surgery, University of Milan, Milan Italy.
authors.forename: Matilde
authors.initials: M
authors.lastname: De Simone
authors.affiliation: Department of Surgery, Ospedale Alessandro Manzoni, Lecco, Italy.
authors.forename: Martino
authors.initials: M
authors.lastname: Gerosa
authors.affiliation: Department of Surgery, University of Milan-Bicocca, Milan, Italy.
authors.forename: Angelo
authors.initials: A
authors.lastname: Guttadauro
authors.affiliation: Department of Surgery, University of Milan, Milan Italy.
authors.forename: Ugo
authors.initials: U
authors.lastname: Cioffi
mesh_terms: D000368:Aged; D005500:Follow-Up Studies; D006801:Humans; D033162:Incidental Findings; D008175:Lung Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000556:secondary* / Q000601:surgery; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D008577:Meningeal Neoplasms / Q000175:diagnosis / Q000473:pathology* / Q000628:therapy; D008579:Meningioma / Q000175:diagnosis / Q000556:secondary* / Q000601:surgery; D011013:Pneumonectomy / Q000379:methods; D019292:Skull Base Neoplasms / Q000175:diagnosis / Q000473:pathology* / Q000628:therapy; D013997:Time Factors; D014057:Tomography, X-Ray Computed / Q000379:methods; D016896:Treatment Outcome; D057832:Watchful Waiting