Abstract
Laser surgery is one of surgical treatment for allergic rhinitis. We observed morphologic changes in nasal mucosa before and after laser surgery using an optical microscope and scanning electron microscope. The following results were obtained;
1) Hyperplasia of the mucous epithelium, thicking of the basement membrane, edema of the lamina propria mucosae, eosinophilic infiltration,enlargement of the nasal glands and dilatation of the sinusoidal capillary were noted in the allergic nasal mucosa before laser surgery.
2) After laser surgery, the nasal mucosa was covered with epithelium that was squamatized or cuboidal and/or columnar epithelium that was stratified. Granulation-like tissue or cicatricial tissue was found, but edema, eosinophilic infiltration and enlarged nasal glands all but disappeared in the lamina propria mucosae.
