Meningeal Melanomatosis: A Challenge for Timely Diagnosis

Figure 1

Brain diffuse leptomeningeal melanomatosis in patient 1. (a), (b): T1 weighted axial image (TR/TE 1157 ms/45 ms) shows diffuse sulcal signal hyperintensity due to melanin products which cause T1 shortening signal. (c), (d): contrast-enhanced T1-weighted volume image (TR/TE 25 ms/4,6 ms) shows prominent and extensive leptomeningeal enhancement.

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