PMC8784481_01
(a) and (b) Images of the patient with unilateral ptosis, eyelid edema, conjunctival injection, chemosis, episcleral vascular engorgement, and tortuosity; (c) an image taken of the same patient on the 10th day of treatment.
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F1
Slit-lamp examination showed eyelid edema, conjunctival injection, chemosis, episcleral vascular engorgement, and tortuosity (Fig. 1A, Fig. 1B). After 10 days of treatment, the eyelid edema, conjunctival injection, chemosis, episcleral vascular engorgement, and tortuosity were reduced, and eye movements were free in all directions (Fig. 1C).
An axial computed tomography scan illustrating proptosis (white arrow), soft tissue inflammation (yellow arrow), dilatation in the right superior ophthalmic vein (asterisk), and ethmoidal sinusitis (red arrow).
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F2
A paranasal sinus computed tomography (CT) examination was performed to clarify the etiology, and right proptosis, periorbital soft tissue inflammation, ipsilateral ethmoidal sinusitis, and dilatation in the right superior ophthalmic vein (SOV) were diagnosed (Fig. 2).
(a) and (b) Axial and coronal contrast-enhanced magnetic resonance imaging sections revealing a dilated right superior ophthalmic vein with a filling defect (asterisk) and a normal left superior ophthalmic vein (plus sign). Red arrow indicates normal right cavernous sinus.
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F3
Magnetic resonance imaging (MRI) indicated a thickened and thrombosed SOV lumen, but a normal right cavernous sinus (Fig. 3).