2024年10月24日 · Agger nasi air cells are the most anterior ethmoidal air cells lying anterolateral and inferior to the f rontal recess and anterior and above the attachment of the middle turbinate. They are located within the lacrimal bone and therefore have as lateral relations the orbit, the lacrimal sac and the nasolacrimal duct 4.

The agger nasi (from Latin: agger meaning "mound or heap") is a small ridge on the lateral side of the nasal cavity. It is located midway at the anterior edge of the middle nasal concha, directly above the atrium of the middle meatus. It is formed by a mucous membrane that is covering the ethmoidal crest of the maxilla.

2003年11月1日 · The anatomy and common variations that occur in the frontal recess are poorly understood by a large number of endoscopic sinus surgeons. The agger nasi cell is proposed as the key to the understanding this complex area.

2015年5月22日 · Numerous sinonasal anatomic variants exist and are frequently seen on sinus CT scans. The most common ones are Agger nasi cells, infraorbital ethmoidal (Haller) cells, sphenoethmoidal (Onodi) cells, nasal septal deviation, and concha bullosa [1–10]. The Agger nasi cells are the most anterior ethmoidal air cells.

The agger nasi (from agger meaning "mound or heap") is a small ridge on the lateral side of the nasal cavity. It is located midway at the anterior edge of the middle nasal concha, directly above the atrium of the middle meatus.

The agger nasi cell is a key anatomic landmark in endoscopic frontal sinus surgery. However, discord amongst authors regarding anatomic definition and prevalence raises questions of its suitability a...

The Agger nasi cell (ANC) and the frontal sinus ostium (FO) are important structures that can influence the anatomy and physiology of the frontal recess. The aim of this study was to evaluate the presence and size of ANC and the FO and correlate them according to gender, race and among themselves.

In endoscopic endonasal DCR surgery, the uncinate process (UP) and/or agger nasi (AN) cell are frequently found to obstruct access to the lacrimal fossa. The aim of this study was to analyse the radiological anatomy of the UP and the AN cell in relation to the lacrimal sac.

The agger nasi cells are the anterior-most ethmoidal cells, which are almost always present (90%) (Standring, 2020). The agger nasi cells lie anterolateral and inferior to the frontal recess and above the middle turbinate. They sit medial to the lacrimal sac, below the frontal sinus.

Our findings suggest that agger nasi cell pneumatization with narrowing of the frontal sinus outflow tract is a significant etiology of persistent frontoethmoid pain and chronic frontal sinusitis. Sagittal reformatted images are capable of demonstrating agger nasi cell encroachment on the NFD, as well as NFD mucosal disease.