title: Extremely delayed renal cell carcinoma metastasis mimicking convexity meningioma.
abstract: Cerebral extra-axial metastases mimicking meningioma are extremely rare. Imaging characterictics may not always differentiate between meningioma and metastatic tumors. A 68-year-old-woman who had been operated for renal cell carcinoma 20 years ago presented with new symptoms of an intracranial mass lesion. A large extra-axial convexity mass destroying the calvarium and dura was excised with Simpson Grade I removal. The pathology examination revealed metastatic carcinoma. Such tumors that satisfy several criteria for a diagnosis of meningioma, but prove instead to be metastatic carcinoma form the focus of our discussion. A meticulous clinical evaluation and histopathological diagnosis is essential in patients with an intracranial mass whether the lesion looks like a primary or metastatic tumor on the first evaluation.
authors.affiliation: University of Kirikkale Faculty of Medicine, Department of Neurosurgery, Kirikkale, Turkey. bademci70@yahoo.com
authors.forename: Gülşah
authors.initials: G
authors.lastname: Bademci
mesh_terms: D000368:Aged; D001932:Brain Neoplasms / Q000175:diagnosis / Q000556:secondary* / Q000601:surgery; D002292:Carcinoma, Renal Cell / Q000473:pathology*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008579:Meningioma / Q000175:diagnosis / Q000473:pathology*; D009392:Nephrectomy; D019635:Neurosurgical Procedures; D014057:Tomography, X-Ray Computed