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OtherBRAIN

Primary Diffuse Meningeal Melanomatosis: Radiologic-Pathologic Correlation

Maria-Giulia Pirini, Mario Mascalchi, Fabrizio Salvi, Carlo A. Tassinari, Licciana Zanella, Patrizia Bacchini, Franco Bertoni, Antonia D’Errico, Barbara Corti and Walter F. Grigioni
American Journal of Neuroradiology January 2003, 24 (1) 115-118;
Maria-Giulia Pirini
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Mario Mascalchi
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Fabrizio Salvi
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Carlo A. Tassinari
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Licciana Zanella
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Patrizia Bacchini
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Franco Bertoni
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Antonia D’Errico
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Barbara Corti
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Walter F. Grigioni
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Fig 1.

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Fig 1.

Primary diffuse meningeal melanomatosis in a 68-year-old woman.

A and B, At presentation, contrast-enhanced cranial CT scans show dilatation of the lateral (A) and third (B) ventricles, with effacement of the cerebral convexity sulci (in A). Abnormal contrast enhancement is present in the right sylvian fissure (arrow in B) and in the right frontoparietal region.

C and D, Twelve months after the placement of a ventricular CSF shunt with a right parietal approach, cranial axial (C) and coronal (D) T1-weighted spin-echo MR images (TR/TE, 580/14) obtained after the intravenous administration of gadopentetate dimeglumine show small lateral and third ventricles and diffuse dural and leptomeningeal enhancement.

E, Plain cranial CT scan obtained 1 month before the patient’s death shows tiny ventricles and symmetric areas of hypoattenuation (arrows) in the subinsular white matter and external capsules. This finding was probably due to neoplastic encasing of the penetrating arteries.

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American Journal of Neuroradiology: 42 (4)
American Journal of Neuroradiology
Vol. 42, Issue 4
1 Apr 2021
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Primary Diffuse Meningeal Melanomatosis: Radiologic-Pathologic Correlation
Maria-Giulia Pirini, Mario Mascalchi, Fabrizio Salvi, Carlo A. Tassinari, Licciana Zanella, Patrizia Bacchini, Franco Bertoni, Antonia D’Errico, Barbara Corti, Walter F. Grigioni
American Journal of Neuroradiology Jan 2003, 24 (1) 115-118;

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Primary Diffuse Meningeal Melanomatosis: Radiologic-Pathologic Correlation
Maria-Giulia Pirini, Mario Mascalchi, Fabrizio Salvi, Carlo A. Tassinari, Licciana Zanella, Patrizia Bacchini, Franco Bertoni, Antonia D’Errico, Barbara Corti, Walter F. Grigioni
American Journal of Neuroradiology Jan 2003, 24 (1) 115-118;
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