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  Indian J Med Microbiol
 

Figure 3: X-ray on day 1: Black eyebrow sign is the description given on plain facial radiographs to intraorbital air. Red arrow shows air density around the left superior orbital margin, suggestive of orbital emphysema

Figure 3: X-ray on day 1: Black eyebrow sign is the description given on plain facial radiographs to intraorbital air. Red arrow shows air density around the left superior orbital margin, suggestive of orbital emphysema