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  • Title: [Dural metastases mimicking meningioma. Report of a case].
    Author: Khalfallah M, Roche PH, Figarrela-Branger D, Malca S, Pellet W.
    Journal: Neurochirurgie; 1999 Sep; 45(3):250-4. PubMed ID: 10567968.
    Abstract:
    We report a case of dural metastasis, detailing the neuroradiologic and therapeutic aspects. The clinical presentation was limited to a progressive left hemiparesis. Post-contrast CT scan revealed a heterogeneous high-density mass of the right fronto-parietal convexity. MRI demonstrated dural involvement mimicking meningioma. Chest X-ray showed a right lung opacity, suggesting the diagnosis of dural metastasis. Surgical resection was performed. Histology confirmed the diagnosis of dural metastasis from a poorly differentiated carcinoma. Treatment was completed with radiotherapy and chemotherapy. Dural metastases are rarely reported. A review of the literature revealed principally 2 radiological aspects: hemorrhagic effusion and tumor mass. The pathophysiology of dural metastases is still a subject of debate. Two mechanisms have been put forward involving venous and arterial dissemination. As radiological aspects are confusing, the diagnosis of dural metastasis should be evoked in patients with spontaneous hemorrhagic subdural effusion or a tumor mass involving the dura mater.
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