Okuni Tsuyoshi, Takano Kenichi, Nomura Kazuaki, Yamashita Keiji, Abe Ayumi, Ito Fumie, Murayama Kosuke, Shirasaki Hideaki, Himi Tetsuo
Adv Otorhinolaryngol. 2016;77:46-51. doi: 10.1159/000441873. Epub 2016 Apr 26.
It is necessary for the surgeon to be familiar with frontal recess anatomy during an endoscopic approach to the frontal sinuses. The aim of this study was to evaluate the prevalence of frontal recess cells in Japanese adults as well as the association between the frontal recess and the location of the anterior ethmoidal artery (AEA). The frontal recess cells and the AEAs were retrospectively evaluated in CT scans of the nasal and paranasal sinuses for 89 patients. The prevalence of agger nasi cells was 90.7%. The frequency of frontal cell types 1, 2, 3 and 4 was 28.8, 0.6, 2.6 and 0%, respectively. Suprabullar cells (SBCs) and frontal bullar cells (FBCs) were identified in 78/96 sides (81.3%) and 24/96 sides (24%), respectively. The prevalence of the medial group of frontal recess cells (interfrontal sinus septal cells) was 12.4%. In 42/61 sides (68.9%), the AEAs were located within the posterior margin of the SBCs or the FBCs. Therefore, SBCs, FBCs and the vertical portion of the middle turbinate are reliable landmarks for the identification of AEAs.
在经鼻内镜入路处理额窦时，外科医生熟悉额隐窝的解剖结构是很有必要的。本研究的目的是评估日本成年人额隐窝气房的发生率以及额隐窝与筛前动脉（AEA）位置之间的关系。对89例患者的鼻窦CT扫描进行回顾性评估，分析额隐窝气房和AEA的情况。鼻丘气房的发生率为90.7%。1型、2型、3型和4型额气房的出现频率分别为28.8%、0.6%、2.6%和0%。分别在78/96侧（81.3%）和24/96侧（24%）发现了泡上气房（SBCs）和额泡气房（FBCs）。额隐窝气房内侧组（额窦间隔气房）的发生率为12.4%。在42/61侧（68.9%）中，AEA位于SBCs或FBCs后缘内。因此，SBCs、FBCs和中鼻甲垂直部是识别AEA的可靠标志。
