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Insights into Imaging
Fig. 14 | Insights into Imaging

Fig. 14

From: Diagnostic methods and therapeutic options of uveal melanoma with emphasis on MR imaging—Part I: MR imaging with pathologic correlation and technical considerations

Fig. 14

A 41-year-old woman with a pigmented choroidal melanoma and serous retinal detachment of the right eye. Axial (a) T2-weighted turbo spin-echo STIR and (b) contrast-enhanced fat-suppressed T1-weighted images show a pigmented choroidal melanoma along the lateral aspect of globe (white arrows); the lesion appears hypointense on T2-weighted image and hyperintense on contrast-enhanced fat-suppressed T1-weighted image. Along the posterior aspect of the globe a retinal detachment is hardly detectable on T2-weighted image, whereas it is better appreciable on fat-suppressed T1-weighted image (white asterisk in b) in which it does not enhance and demonstrates the typical biconvex V shape with the vertex in correspondence of the optic nerve head (white arrowhead). (c, d) Histology from a different patient from the one shown in MR images. The biconvex V-shaped retinal detachment, caused by a nearby intensely pigmented uveal melanoma, is readily identifiable on both (c) low (H&E, original magnifications ×25) and (d) high (H&E, original magnification ×50) magnification. Note the emergence of the optic nerve forming the vertex of the “V” (H&E, original magnifications ×25× and ×50, respectively)

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