Lipomatous meningioma of the brain harboring metastatic renal-cell carcinoma: A case report

Abstract

A 70-year-old woman presented with mild left hemiparesis and intermittent global headache. Magnetic resonance imaging showed a 6 x 6 x 6-cm tumor in the right frontal lobe, and abdominal computed tomography revealed a 8 x 8 x 7-cm mass lesion in the left kidney. Magnetic resonance imaging showed that the brain tumor consisted of a central hyperintense cystic component and an outer hypointense component. The patient underwent total surgical excision of the intracranial mass. Histological and immunohistochemical examination showed that the lesion was a lipomatous meningioma harboring metastatic renal-cell carcinoma. Both of these tumors are rare. The magnetic resonance imaging findings are indicative of but not specific to meningioma harboring metastatic tumor.

Lipomatous meningioma: A study of five cases with brief review of literature

“…Seizures and headaches are the most common symptoms at diagnosis. [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] Seizures were the most common presentation in the present series. Most of the reported tumors occur in supratentorial location.…”

“…[1] Lipomatous meningioma, also known as lipomeningioma or lipoblastic meningioma, is a rare entity and only 36 cases have been described in the English literature. [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] The largest series included 18 cases [3] and ours is probably the second largest series of lipomatous meningioma. Lipomatous meningiomas represented 0.3% of all meningiomas operated at the Mayo Clinic over 15 years period.…”

“…[3,4] The studies on lipomatous meningioma are limited, and only 36 cases have been described in the literature. [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] In this study, we describe the clinical course, neuro-radiological features and morphology of 5 patients with lipomatous meningioma.…”

Cancer metastases to meningioma: apropos two cases

“…Metastases from renal cancer to meningioma are rare and only seven cases have been described so far [5,11,12,16,17]. The patients' age ranged from 45 to 82 years.…”

“…Five cases were subtyped into: three meningothelial, one lipoma tous and one anaplastic. Interestingly, the diagnosis of RCC was based at first on the meningioma with TTTM investigation in three cases [5,11,16].…”