No abstract available.
Maxillary Sinus* ; Maxillary Sinusitis*

No abstract available.
Maxillary Sinus* ; Maxillary Sinusitis*

No abstract available.
Maxillary Sinus* ; Maxillary Sinusitis*

No abstract available.
Maxillary Sinus* ; Maxillary Sinusitis*

BACKGROUND AND OBJECTIVES: There have been many studies concerning histologic changes and effectiveness of specific treatment in the experimentally induced sinusitis model, but there are few studies about natural course of paranasal sinusitis. This study aimed to analyze the natural course of sinusitis and the influence of stress on the natural disease course. MATERIALS AND METHOD: Natural ostia of 120 rabbits were occluded and reopened at 10 days after occlusion. Rabbits were divided into six groups according to duration from reopening to sacrifice. Each group was sacrificed at 1, 4, 8, 12, 19, 26 days after reopening of the natural ostium. Each group was divided into a control and stress subgroups. Radiologic, gross and histologic findings were analyzed. RESULTS: Percentage of rabbits showing partial or total haziness was highest at 3 days after reopening in the control subgroup and at 11 days in the stress subgroup. Percentage of the rabbits showing moderate or severe amount of pus in the sinus on gross examination was highest at 4 days in both subgroups. Degree of epithelial loss was most severe at 4 days in both subgroups. Subepithelial thickness was largest and inflammatory cell infiltrations were most severe at 8 days in both subgroups. Although there was a lack of statistical significance, stress subgroups showed more severe gross, radiologic, and histologic findings than those of control subgroups. CONCLUSION: This study shows that maxillary sinusitis is induced by natural ostium occlusion only and is improved with time without any treatment, and that stress might influence the severity of maxillary sinusitis.
Maxillary Sinus* ; Maxillary Sinusitis* ; Rabbits* ; Sinusitis ; Suppuration

94 patients who were 15 years or more were involved in study. These patients were underwent histological examinations. Histopathological revealed variable and complex lesions, with multiple lesions in the same sinus such as mucous degeneration, hyperplasia, dysplasia, atrophy, papiloma, fungus. Lesions in buffer tissues include significant edema, bleeding, congestion, gland proliferation and structural abnormalities.
Maxillary Sinusitis ; Maxillary Diseases ; pathology

Organized hematoma of the maxillary sinus is a rare clinical disease. We report a case of organized hematoma of the maxillary sinus presenting with acute sinusitis. This is the first article describing such a case. Included is a review of the literatures, highlighting the diagnostic signs of organized hematoma of the maxillary sinus.
Hematoma ; Maxillary Sinus ; Sinusitis

A study on the bacterials in the chronic maxillary sinusitis among patients more than 15 years has shown that patients with ages of 15-35 accounted for 78.48%. The antibiogram for microbial isolated from sinus found that sensitivity of microbial to Ciprofloxacin, gentamicin, Cephalexin, erythromycine, chloramphenicols, ampicilline, penicillin, Augmentine, Thiophenicole was 100%, 76%, 63.5%, 15.62%, 17.75%, 8.37%, 6.25%, 5.25% and 2.12%, respectively.
Maxillary Sinusitis ; Bacterial Infections

The purpose of this study was to evaluate the Waters' views, panoramic and periapical radiograms as well as clinic al symptoms in the diagnosis of maxillary sinusitis. The author analyzed the types of mucosal thickenings, the types of bony wall changes, the pathologic changes of antra l floors and total amount of agreement on radiograms in 495 patients with 505 maxillary sinuses which demonstrated radio graphic changes. The results were obtained as follows : 1. 125 cases (24.8%) showed the mucosal thickening of antral floor and lateral wall(Type II), 106 cases (20.9%) showed the mucosal thickening around the whole antral wall(Type IV) and 75 cases (14.8%) showed increased radiopacity of whole antrum. 2. Among 505 cases of mucosal thickening, 319 cases(63.2%) showed the bony wall changes: 114 cases (35.9%) showed the thining of lateral walls, 105 cases(32.8%) showed the thickening of lateral walls and 47 cases(14.7%) showed indistinct antral walls. 3. Among 6 types of mucosal thickenings, the incidence of bony wall changes was high in type VI(73.3%) and in type IV(7 1.6%). 4. 139 cases(25.1%) showed no pathologic change of antral floor, 127 cases(22.9%) showed the indistinct antral floor an d 022 cases (22.1%) showed the halo appearance of antral floor on panoramic and periapical radiograms. 5. 449 cases(88.9%) showed apparent increased radiopacity and 47 cases(9.3%) showed suspicious increased radiopacity on Waters' views. 280 cases(71.6%) showed apparent increased radiopacity and 88 cased (22.5%) showed suspicious increased radiopacity on panoramic radiograms. And 141 cases(31.6%) showed apparent increased radiopacity and 133 cases(33.4%) showed suspicious increased radiopacity on periapical radiograms.
Diagnosis ; Humans ; Incidence ; Maxillary Sinus* ; Maxillary Sinusitis*

The purpose of this study was to evaluate the Waters' views, panoramic and periapical radiograms as well as clinic al symptoms in the diagnosis of maxillary sinusitis. The author analyzed the types of mucosal thickenings, the types of bony wall changes, the pathologic changes of antra l floors and total amount of agreement on radiograms in 495 patients with 505 maxillary sinuses which demonstrated radio graphic changes. The results were obtained as follows : 1. 125 cases (24.8%) showed the mucosal thickening of antral floor and lateral wall(Type II), 106 cases (20.9%) showed the mucosal thickening around the whole antral wall(Type IV) and 75 cases (14.8%) showed increased radiopacity of whole antrum. 2. Among 505 cases of mucosal thickening, 319 cases(63.2%) showed the bony wall changes: 114 cases (35.9%) showed the thining of lateral walls, 105 cases(32.8%) showed the thickening of lateral walls and 47 cases(14.7%) showed indistinct antral walls. 3. Among 6 types of mucosal thickenings, the incidence of bony wall changes was high in type VI(73.3%) and in type IV(7 1.6%). 4. 139 cases(25.1%) showed no pathologic change of antral floor, 127 cases(22.9%) showed the indistinct antral floor an d 022 cases (22.1%) showed the halo appearance of antral floor on panoramic and periapical radiograms. 5. 449 cases(88.9%) showed apparent increased radiopacity and 47 cases(9.3%) showed suspicious increased radiopacity on Waters' views. 280 cases(71.6%) showed apparent increased radiopacity and 88 cased (22.5%) showed suspicious increased radiopacity on panoramic radiograms. And 141 cases(31.6%) showed apparent increased radiopacity and 133 cases(33.4%) showed suspicious increased radiopacity on periapical radiograms.
Diagnosis ; Humans ; Incidence ; Maxillary Sinus* ; Maxillary Sinusitis*