PMC6215577_01
At clinical examination the patient shows proptosis, downward displacement of eye, periorbital swelling, and redness (a). MRI fat-suppressed coronal T2-weighted (b, c) and axial T1-weighted images (d) show an inhomogeneous hypointense mass located in the lateral aspect of the right orbit that extends to the nose and ethmoid sinus with intense and heterogeneous contrast enhancement (e). H&E stain of the tumor shows a monomorphic proliferation of plasmablastic cells (f).
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fig1
T2-weighted images and hypointense on T1-weighted images and showed intense and inhomogeneous contrast enhancement. The mass was located in the lateral orbit cavity extending to the ethmoid and maxillary sinuses, with bony destruction, encasing and displacing the medial rectus and superior oblique muscles, optic nerve, ocular globe, and vascular structures (Figure 1).