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

PURPOSE: To evaluate the computed tomographic appearances of postoperative maxillary sinuses. MATERIALS AND METHODS: 33 asymptomatic cases of post-operative maxillary sinus without evidence of any patho-logic changes and clinical symptoms were selected. CT images were classified as opacification, soft tissue shadow, anterior wall depression, naso-antral communication, and compartmentalization. The relationships between the CT image and the age of patients at the time of operatation, and between the CT image and the duration of time elapsed since the surgical procedure were evaluated. RESULTS: The most commonly presented radiological characteristics that occurred after the Caldwell-Luc procedure were opacification and soft tissue shadow. Anterior wall depression and naso-antral communication were radiographic indications that a Caldwell-Luc operation had been carried out. The age of patients when they had been first operated on, and the duration between the surgical procedure and the time of evaluation had no effect on the CT appearances of normal changes. In cases involving a longer time interval between the antral surgery and evaluation, the anterior wall depression with bony healing was more commonly observed than soft tissue healing. CONCLUSION: The radiographic information regarding the normal healing state using computed tomography can distinguish post-operative changes from inflammatory and cystic disease in patients who have undergone a Caldwell-Luc type of radical maxillary antrostomy.
Depression ; Humans ; Maxillary Sinus* ; Maxillary Sinusitis

38 cases of FESS are performed at the ENT department in 1998 by Messerklinger technique. Good result obtained in about 80% patients. No major complication was seen. The advantages and disadvantages of FESS are also discussed
Maxillary Sinus ; Maxillary Sinusitis ; surgery ; endoscopy