Orbital Cellulitis with Subperiosteal Abscess (with Video).

Orbital CT showed a subperiosteal abscess compressing superior-rectus and superior-oblique muscles, and opacification of bilateral sinuses (Fig. Graph: Figure 1 Photographs of ocular movement deficits of the left eye with various eye movements - directions of attempted gaze shown by closest arrow to images (panel a). Orbital cellulitis should be suspected if proptosis, diplopia, pain with eye movement, or ophthalmoplegia are present.[1]-[3] Direct extension from sinus infection is the most common source of orbital cellulitis and subperiosteal abscess.[1], [2], [4] For both conditions, orbital imaging is necessary for definitive diagnosis. [Extracted from the article]