Highlights
- •SOEC type 2 was the most detected type (71.3%).
- •In more pneumatized SOEC presence, AEA notch-ethmoid roof distance increases.
- •The surgeons should be more careful not to damage AEA in well-pneumatized SOECs (SOEC Type 3).
Abstract
Objectives
We investigated supraorbital ethmoid cell (SOEC) presence and types in paranasal sinus
computed tomography (PNSCT).
Methods
The PNSCT images of 188 adult patients (93 males and 95 females) were evaluated as
SOEC group (n = 87 sides), and non-SOEC group (n = 289 sides, control). In both groups,
anterior ethmoid artery (AEA) notch-ethmoid roof distance and presence of AEA canal
were evaluated. In the SOEC group, SOEC types (type 1 to 3) and SOEC angle are also
examined.
Results
SOEC was detected in 87 sides (23.13 %). SOEC type 2 was the most detected type (71.3 %).
AEA notch-ethmoid roof distance of the SOEC group was significantly higher than those
in the non-SOEC group. AEA notch-ethmoid roof distance of the SOEC Type 3 group was
significantly higher than SOEC Type 2 group. AEA notch-ethmoid roof distance was 3.74 ± 1.81 mm
in the SOEC group and 0.68 ± 1.16 mm in the non-SOEC group. When SOEC types were considered,
this distance was 5.29 ± 2.66 mm in type 3, 3.35 ± 1.35 mm in type 2 and 3.48 ± 0.92 mm
in type 1. In higher SOEC types, SOEC angle; and AEA notch-ethmoid roof distance increased.
Conclusion
In more pneumatized SOEC presence, SOEC angle increase, and AEA notch-ethmoid roof
distance increases, AEA runs inferiorly in the ethmoid cells and freely below the
skull base; and is more susceptible to injury. The surgeons should be more careful
not to damage AEA in the FESS when detecting well-pneumatized SOECs (SOEC Type 3).
Keywords
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Article info
Publication history
Accepted:
February 7,
2023
Received:
November 28,
2022
Identification
Copyright
© 2023 Elsevier Ltd. All rights reserved.
