case_images: PMC3764955_01
case_images: Right periorbital swelling and ptosis, and severe chemosis were observed in the initial presentation.
case_images: cop-0004-0093-g01.jpg
case_images: PMC3764955_01_cop-0004-0093-g01.jpg
case_images: F1
case_images: Examination of the left eye was unremarkable (fig. 1).
case_images: Non-contrast orbital CT scan revealed periorbital tissue infiltration and right orbital edema (arrows). a Axial view shows muscular thickening of the right lateral rectus muscle. b Coronal view shows right periorbital swelling and mucoperiosteal soft tissue attenuation in the left maxillary sinus.
case_images: cop-0004-0093-g02.jpg
case_images: PMC3764955_01_cop-0004-0093-g02.jpg
case_images: F2
case_images: A non-contrast orbital computed tomography (CT) scan displayed right periorbital infiltration and swelling, thickening of the right lateral rectus muscle, and mucoperiosteal soft tissue attenuation in the left maxillary sinus, leading to a diagnosis of right orbital cellulitis (fig. 2).
case_images: Right lid swelling, chemosis, corneal edema, and orbital inflammation resolved 2 weeks after the onset.
case_images: cop-0004-0093-g03.jpg
case_images: PMC3764955_01_cop-0004-0093-g03.jpg
case_images: F3
case_images: The patient's limited extraocular motility in the right eye and diplopia also resolved (fig. 3).