PMC3867860_01
Linear measurements of frontal sinus in the coronal plane (RW: width of the right sinus, LW: width of the left sinus, RH: height of the right sinus, and LH: height of the left sinus).
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fig1
No other abnormalities were found, apart from a retention cyst in the right maxillary sinus (Figures 1-4). Tatlisumak et al.. The width, height, and anteroposterior length of each frontal sinus and the total width of both sinuses were calculated (Figures 1 and 2).
(a) Linear measurements of frontal sinus in the axial plane (RL: anteroposterior length of the right sinus and LL: anteroposterior length of the left sinus). (b) Area calculation of the sphenoid sinuses and the mastoid air cells in the axial plane.
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PMC3867860_01_CRIM.OTOLARYNGOLOGY2013-836064.002.jpg
fig2
No other abnormalities were found, apart from a retention cyst in the right maxillary sinus (Figures 1-4). Tatlisumak et al.. The width, height, and anteroposterior length of each frontal sinus and the total width of both sinuses were calculated (Figures 1 and 2). The area of each sinus was measured in every axial CT image (Figure 2) and multiplied by the slice thickness.
(a) The frontal sinus enchroaching the orbit. (b) The optic nerves are exposed (arrows) in the superior part of the sphenoid sinus.
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PMC3867860_01_CRIM.OTOLARYNGOLOGY2013-836064.003.jpg
fig3
No other abnormalities were found, apart from a retention cyst in the right maxillary sinus (Figures 1-4).
The frontal lobe looks smaller in size due to the enlargement of the frontal sinus. Linear measurements of maxillary sinus (RW: width of the right sinus, LW: width of the left sinus, RH: height of the right sinus, and LH: height of the left sinus).
CRIM.OTOLARYNGOLOGY2013-836064.004.jpg
PMC3867860_01_CRIM.OTOLARYNGOLOGY2013-836064.004.jpg
fig4
No other abnormalities were found, apart from a retention cyst in the right maxillary sinus (Figures 1-4).