ostiomeatal complex

(redirected from Ostiomeatal Unit)
Also found in: Acronyms.

os·ti·o·mea·tal com·plex

site in the middle meatus where the frontal and maxillary sinuses normally open into the nasal cavity; obstruction here predisposes infection in the sinus cavities.
Synonym(s): ostiomeatal unit
References in periodicals archive ?
Coronal noncontrast computed tomography (CT) performed with 3-mm collimation and interval revealed a left ICB, minimal and scattered mucosal thickening, and partial bilateral ostiomeatal unit obstruction (figure).
Endoscopy to visualize the nasal cavity, including the ostiomeatal unit, helps make the diagnosis.
Immunodeficiency and local tissue conditions, such as allergic mucosal hypertrophy and chronic bacterial sinusitis, can create an obstruction of the ostiomeatal unit and provide favorable conditions that allow the fungus to proliferate and invade.