Presentation
Trauma.
Patient Data
Age: 40 years
Gender: Male
From the case:
Black eyebrow sign
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A lucent crescent is noted abutting left orbial superior rim.
From the case:
Black eyebrow sign
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Left orbital emphysema known as black eyebrow sign on plain film - secondary to fracture of medial wall of the orbit.
Case Discussion
Post traumatic case showing air crescent abutting left orbital superior rim.The appearance of this curvilinear lucency is like that of an eyebrow. The black eyebrow sign indicates orbital emphysema, typically from a orbital fracture, with air having entered from the adjacent sinuses.