What is Osteomeatal complex and its function?
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.
Where is the Osteomeatal complex located?
The maxillary sinuses are located beneath the cheekbones, above the upper teeth. The maxillary sinus drains into what is called the osteomeatal complex, which is an opening on the outer wall of the nasal cavity.
What is Osteomeatal complex obstruction?
An obstruction of the ostiomeatal complex, the common passage for the anterior, frontal, and maxillary sinuses, was evident in the diseased condition of all 3 sinuses in patients with unilateral chronic rhinosinusitis.
What is Osteomeatal unit?
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.
What is a Haller cell?
Haller’s cells are defined as air cells situated beneath the ethmoid bulla along the roof of the maxillary sinus and the most inferior portion of the lamina papyracea, including air cells located within the ethmoid infundibulum.
How do you treat polypoid mucosal thickening?
Conclusions: A combined short-term steroid therapy is highly effective in chronic polypoid rhinosinusitis, reducing the mucosal inflammation mainly in the large sinuses and reducing the incidence of symptoms significantly.
What is a Haller cell in sinuses?
Does mucosal thickening mean sinus infection?
Mucosal thickening is seen in more than 90% of patients with sinusitis, but this finding is highly nonspecific. Air-fluid levels and complete opacification are more specific for sinusitis, but they are seen in only 60% of sinusitis cases.
What causes polypoid mucosal thickening?
The condition is usually, but not always, associated with a suppurative sinusitis. Skillern stated that repeated attacks of coryza, each one leaving greater changes in the mucosa, contribute to the ultimate formation of polypoid tissue. Influenza seems to be a predisposing factor.
What is the ostiomeatal complex?
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. This article will evaluate the boundaries, composition and anatomical variations of the ostiomeatal complex.
Does the osteomeatal complex play a role in the etiology of chronic rhinosinusitis?
PMID: 20211104 Abstract Introduction: Classic teaching suggests that disease in the osteomeatal complex (OMC) plays a pivotal role in the establishment of chronic rhinosinusitis (CRS). We sought to test this hypothesis.
What is the significance of osteomeatal complex obstruction in CRS?
Significance of osteomeatal complex obstruction More than 35% of patients meeting the Task Force definition of CRS did not manifest OMC obstruction radiologically. When present, OMC obstruction did correlate with the presence of asthma and polyps. OMC obstruction was also associated with increased disease burden overall and ipsilaterally.