Mucosal Thickening in Sinuses

Definition and Clinical Significance

Mucosal thickening refers to swelling of the lining (mucosa) that covers the inside of your sinuses, commonly seen on imaging studies such as CT scans or MRIs of the sinuses 4, 5
Minimal thickening with patent (open) ostiomeatal complex (OMC) generally does not require ENT referral or treatment, as recommended by the American Academy of Otolaryngology 1, 2, 3
The presence of a patent ostiomeatal complex (the drainage pathway of the sinuses) is more important than the degree of mucosal thickening in determining clinical significance, according to the American Academy of Otolaryngology 1, 6

Air-fluid levels within the sinuses, bone erosion or destruction, and complete opacification (filling) of the sinus are concerning findings that may indicate active disease, as noted by the American Academy of Allergy, Asthma, and Immunology 1, 4, 7
Symptoms such as facial pain/pressure, nasal congestion, purulent discharge, or decreased sense of smell lasting more than 4 weeks are indicative of potential sinusitis, as recommended by the American Academy of Allergy, Asthma, and Immunology 4, 7

If you have no symptoms, no specific treatment is needed, as suggested by the American Academy of Allergy, Asthma, and Immunology 4
Saline nasal irrigation and intranasal corticosteroids may be considered for mild symptoms, as recommended by the American Academy of Allergy, Asthma, and Immunology 4, 7
Antibiotics should be prescribed based on clinical symptoms rather than imaging findings alone, as recommended by the American Academy of Otolaryngology and the American Academy of Allergy, Asthma, and Immunology 4, 7, 9