منابع مشابه
THE. ROUND WINDOW NICHE AND MEMBRANE IN CHRONIC SUPPURATIVE OTITIS MEDIA
This study evaluated the histopathologic changes in the round window niche. , and membrane in cases of chronic suppurative otitis media. The pathologic process was found in all subjects. Fibrocystic or fibrous tissue was most commonly seen, while active granulation was less developed. The round window membrane was thicker and inflamed throughout its layers. Inflammatory invasion of the inne...
متن کاملthe. round window niche and membrane in chronic suppurative otitis media
this study evaluated the histopathologic changes in the round window niche. , and membrane in cases of chronic suppurative otitis media. the pathologic process was found in all subjects. fibrocystic or fibrous tissue was most commonly seen, while active granulation was less developed. the round window membrane was thicker and inflamed throughout its layers. inflammatory invasion of the inner ea...
متن کاملUltrastructural characteristics of the round window membrane during pneumococcal otitis media in rat.
To understand better the pathogenesis of inner ear (IE) damage caused by otitis media (OM), the round window membrane(RWM) structure was investigated in a rat model for pneumococcal otitis media (POM). The RWM of 25 rats were evaluated light and electron microscopically on 1 day, 3 days, 6 days, 10 days, and 20 days after the unilateral inoculation of type 3 pneumococcus suspension into their m...
متن کاملThe round window membrane in otitis media: effect of pneumococcal proteins.
OBJECTIVE To determine whether mutants of Streptococcus pneumoniae that are deficient in pneumococcal surface protein A (PspA), pneumococcal surface antigen A (PsaA), or pneumolysin (Ply) are less virulent and less likely to penetrate the round window membrane (RWM). DESIGN Histopathologic comparison of wild-type S. pneumoniae and its mutants deficient in PspA, PsaA, and Ply. SETTING Otopat...
متن کاملAlterations in the Contra lateral Ear in Chronic Otitis Media
Introduction: Chronic otitis media (COM), a persistent and durable inflammation and infection of the middle ear, is a common disorder. Alterations in the contralateral ear in sufferers have been observed in recent years. Because only a few studies have been reported in this area, we performed this study in order to assess alterations in the contralateral ear of patients with COM. Materials an...
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ژورنال
عنوان ژورنال: Archives of Otolaryngology–Head & Neck Surgery
سال: 2008
ISSN: 0886-4470
DOI: 10.1001/archotol.134.6.658