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Images in Clinical Radiology

Diffusion restriction of posterior uveal melanoma on MR imaging

Authors:

R. Semnic ,

Institute of Oncology, Sremska Kamenica; Faculty of Medicine, University Of Novi Sad, Serbia, RS
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D. Kozic,

Institute of Oncology, Sremska Kamenica; Faculty of Medicine, University Of Novi Sad, Serbia, RS
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K. Petrovic,

Faculty of Medicine, University Of Novi Sad, Serbia; Centre of Radiology, Faculty of Medicine, University of Novi Sad, Serbia, RS
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F. M. Vanhoenacker

Department of Radiology, AZ Sint- Maarten Duffel-Mechelen, Mechelen; Department of Radiology, Antwerp University Hospital, Edegem; University of Ghent, Faculty of Medicine and Health sciences, Ghent
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Abstract

A 55-year-old male with clinical and opthalmological signs of retinal ablation was referred for orbital magnetic resonance imaging (MRI). MR scan revealed a small tumor nodule in the posterolateral part of left eye globe as a cause of ablation. Tumor showed high signal on transverse diffusion weighted image (DWI) (Fig. A, arrow), low signal on apparent diffusion coefficient image (Fig. B, arrow), consistent with restricted diffusion. The nodule had intermediate signal on T1 sagittal weighted unenhanced image (Fig. C, arrow). The patient underwent left eye enucleation with histopathologically proved uveal melanoma.
How to Cite: Semnic R, Kozic D, Petrovic K, Vanhoenacker FM. Diffusion restriction of posterior uveal melanoma on MR imaging. Journal of the Belgian Society of Radiology. 2014;97(5):312. DOI: http://doi.org/10.5334/jbr-btr.1338
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Published on 01 Sep 2014.
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