摘要:

Biopsies of the middle ear mucosa were performed in 11 patients receiving their first ventilation tubes and in 5 patients who were admitted for reinsertion of tubes for chronic mucoid effusion. All patients had had the disease for at least 6 months. Mucosubstances were seen in the form of a mucus blanket, and as positive staining in the apical parts of the epithelial cells. Goblet cells varied greatly in frequency and larger subepithelial glands were present in cases of longer duration and intermittent discharge. In the majority of specimens, mononuclear cells were frequent in the propria, forming lymphocyte follicles in some cases. One-third of the specimens showed distinct fibrotic changes, and only a few inflammatory cells were present. Thus, mucosal response consisted of immune cells and could be due to chronic irritation, caused by bacteria and their immune complexes. Polymorphonuclear leukocytes were not present except in the effusion itself, a circumstance which points to infection as the causative factor. Pronounced proprial changes may indicate irreversibility of the disease.

ISSN:0301-1569    

DOI:10.1159/000275543

出版商:S. Karger AG    

年代:1981

数据来源: Karger

摘要:

The behavior of a ceramic, sintered hydroxylapatite in animal experiments and clinical trials is reported. This material demonstrates its usefulness in the reconstruction of bony defects in the external ear canal and as replacement of the bony ear canal in a total alloplastic middle ear prosthesis.

ISSN:0301-1569    

DOI:10.1159/000275544

出版商:S. Karger AG    

年代:1981

数据来源: Karger

摘要:

After a brief survey of the microsurgical methods for acoustic neurinomas, a case is described in which a successful bilateral operation has been performed. Facial nerve function could be preserved on both sides and on the side of the still functioning ear hearing could also be saved. At 12 months following the operation pure tone and speech hearing were found to be the same as before the operation.

ISSN:0301-1569    

DOI:10.1159/000275545

出版商:S. Karger AG    

年代:1981

数据来源: Karger

摘要:

87 cases of cerebral lesions were examined to determine which part of the cerebrum is the most important for eye movements and how it controls eye movements. (1) The frontal lobe (frontal eye field) is important for saccades, and (2) the parietal lobe, especially the lower parietal lobe, is very important for visual fixation.

ISSN:0301-1569    

DOI:10.1159/000275546

出版商:S. Karger AG    

年代:1981

数据来源: Karger

摘要:

In sinusitis, the colonization with Enterobacteriaceae and Pseudomonas as a consequence of antibiotic therapy, irrigation, and hospitalization has been analyzed. Evaluating the self-cure rate of acute and chronic sinusitis, the prognosis is excellent without therapy. Therefore, the indication for antibiotics, irrigation, and hospitalization should be critically reviewed.

ISSN:0301-1569    

DOI:10.1159/000275547

出版商:S. Karger AG    

年代:1981

数据来源: Karger

摘要:

A series of 11 cases of mucoepidermoid carcinoma of the larynx is presented. The neoplasm is uncommon and the present series has been selected from 872 primary malignant neoplasms of the larynx evaluated at the Section of Pathology of ENT Department of Padua University from January 1975 to December 1979. The median age of the patients was 59 years. The most common location was the epiglottis. The tumors were classified on the basis of cellular differentiation, and common and/or uncommon pathologic features were recorded. Differential diagnosis must be made from several neoplasms, in particular from squamous cell carcinoma, adenoid cystic carcinoma and adenosquamous carcinoma. The treatment of choice is surgery. The prognosis is better than that of the commoner squamous carcinoma and depends both upon the stage and the histologic grading.

ISSN:0301-1569    

DOI:10.1159/000275548

出版商:S. Karger AG    

年代:1981

数据来源: Karger

ISSN:0301-1569    

DOI:10.1159/000275549

出版商:S. Karger AG    

年代:1981

数据来源: Karger