What makes up the Ostiomeatal complex?

Scribano et al. have defined the osteomeatal complex as a complex including the maxillary sinus ostium, ethmoid infundibulum and middle meatus; in other words, as the final site of drainage from the frontal and maxillary sinuses and anterior ethmoidal cells [11].

What is Osteomeatal complex?

The ostiomeatal complex (OMC) or ostiomeatal unit (OMU), sometimes less correctly spelled as osteomeatal complex, is a common channel that links the frontal sinus, anterior ethmoid air cells and the maxillary sinus to the middle meatus, allowing airflow and mucociliary drainage.

Why do we have Uncinate processes?

The uncinate process, which is the most important structure of OMC, both prevents the direct contact of the inspired air with the maxillary sinus, acting like a shield, and plays a role in mucociliary activity [3].

What is uncinate process in anatomy?

The uncinate process is a wing or boomerang shaped piece of bone. It forms the first layer or lamella of the middle meatus. It attaches anteriorly to the posterior edge of the lacrimal bone, and inferiorly to the superior edge of the inferior turbinate.

Where is Ostiomeatal complex?

maxillary sinus
The ostiomeatal complex (OMC) is the collection of structures that aids in mucus drainage and airflow between the maxillary sinus, the anterior ethmoid air cells, and the frontal sinus. It is located on the lateral wall of the nasal cavity and has several well defined borders.

What causes mucosal thickening in maxillary sinus?

Mucosal thickening is an inflammatory reaction with hyperplasia of the mucous lining of the maxillary sinus. This condition may result from harmful actions caused by trauma, infections, chemical agents, foreign body reaction, neoplasm, or airway conditions such as allergies, rhinitis, or asthma.

What is the success rate of sinus surgery?

Outcome. The results after FESS are good, with most studies reporting an 80 to 90 percent rate of success.

What does the uncinate process do and how does it achieve that result?

They allow for flexion and extension and limit lateral flexion in the cervical spine. They prevent posterior linear translation movements of the vertebral bodies,Important in providing stability and guiding the motion of the cervical spine[10].

What is uncinate process of maxillary sinus?

A curved lamina, the uncinate process, projects downward and backward from this part of the labyrinth; it forms a small part of the medial wall of the maxillary sinus, and articulates with the ethmoidal process of the inferior nasal concha.

What is uncinate process in nasal cavity?

The uncinate process of the ethmoid bone is a thin hook-like osseous structure of the wall of the lateral nasal cavity.

Is uncinate process part of the head?

The uncinate process is an extension of the inferior part of the head of the pancreas that projects medially and wraps around the superior mesenteric vessels.

Which sinuses drain into the superior meatus of the Ostiomeatal complex?

frontal sinus
The complex of structures into which the maxillary sinus, anterior ethmoid complex and frontal sinus drain is called the ostiomeatal complex (fig 4).