What is mucosal edema of right maxillary sinus and mucous retention cyst?

Mucous membrane: Often this is from an allergic reaction. If the thickening is significant, one needs to consider an infection in the sinuses. Do note that pregnancy itself can cause nasal congestion (especially if you have never had nasal symptoms prior to your pregnancy).

Common finding: On CT of the sinuses,: means thickening of the mucosal lining of the sinus, and some small sac (cyst) with retained secretions may be present, has no effect unless it blocks the drainage of the sinus itself into the nasal cavity. Take care