PMC5253506_01
(a) illustrates severe sinusitis involving the ethmoid air cells and left maxillary sinus, moderate involvement of the right maxillary sinus, and mild involvement of the frontal sinuses. (b) shows a 3 cm extra-axial structure in the left frontal region, epidural in location.
CRIEM2017-8743828.001.jpg
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fig1
Computed tomography (CT) of the head without contrast was ordered to evaluate for suspicion of intracranial pathology, revealing 1.3 cm attenuation behind the frontal bone and severe frontal sinusitis (Figure 1).
(a, b) show a 2.1 cm epidural lesion in the left frontal region producing minimal mass effect on the left frontal lobe with adjacent edema of the left frontal lobe and multichamber sinusitis (b).
CRIEM2017-8743828.002.jpg
PMC5253506_01_CRIEM2017-8743828.002.jpg
fig2
MRI with and without contrast were subsequently ordered, showing a 2.1 cm epidural lesion in the left frontal region producing minimal mass effect on the left frontal lobe (Figure 2).