Abstract
There have been many reports about the mechanisms for the development of chronic sinusitis, but there remainsmany unclear points in its mechanisms. In this study, we investigated the conditions of the maxillary sinus with sinoscopy in which X-ray revealed abnormal shadow, and samples were also taken from the antrums to examine the pathological findings. We found that the mucosae of the maxillary sinus with chronic sinusitis were often edematous especially at the bottoms of the antrums, and in patients with nasal allergy. The number of eosinophils in the mucosa of the maxillary sinus significantly increased in nasal allergy compared with non-allergic sinusitis. And we found the process that the edematous mucosa had been healing. These results suggested that type-I allergic reaction might occur in the maxillary mucosa as well as in patients with nasal allergy.
