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Maxillary sinusitis - Definition


The maxillary sinuses are cavities in the inside of the maxillae bone group, specifically the section located under the orbit in the upper section of the cheek. These sinuses belong to the family of paranasal sinuses, all cavities filled with air that communicate with the nasal cavities. Like all other sinus cavities, the maxillary sinuses are lined with mucous. Sinusitis is the inflammation of a sinus, generally caused by bacterial, viral, or fungal infection, and all types share the common symptoms fever, blocked nose, and rhinorrhea, or runny nose. Maxillary sinusitis is distinct in its presence of a suborbital, which is increased when the patient tilts his or her head forward. Typical treatment for acute sinusitis is based on antibiotics and nasal decongestants, sometimes accompanied by corticosteroids.