نتایج جستجو برای: pneumatization

تعداد نتایج: 401  

Journal: :International Journal of Contemporary Medical Research [IJCMR] 2019

2017

INTRODUCTION Chronic perforated otitis media, which is usually caused by severe or recurrent otitis media in childhood, can cause gradual deterioration of residual hearing. Therefore, early surgical intervention is desirable. Many researchers have investigated the relationship between age and the results of tympanoplasty in chronic otitis media [1, 2]. Tympanoplasty in elderly patients is accep...

2016
Soo Kweon Koo Sung Hoon Jung Ji Seung Moon

The “nasal swell body” (NSB) or septal turbinate is a distinct structure of the anterior nasal septum that is observed on endoscopic and radiographic examination. It is primarily a glandular rather than a venous formation that is comprised of septal cartilage, bone, and thick mucosal lining. It is commonly found in patients with symptoms of chronic sinusitis and allergic rhinitis, and is linked...

Aims: Sphenoid sinus is one of the most inaccessible paranasal sinus, and is closely correlated to many vascular and neural structures. Anatomic variation of the sphenoid sinus can complicate surgery in this area. The aim of the present investigation was to define the sphenoid sinus variations and the relevant structures using cone-beam computed tomography (CBCT). Methods: This cross-sectiona...

2007

The effect of chronic middle ear inflammation on the development of mastoid air cell system was investigated in piglings, whose tympanic bullae closely resemble the human mastoid air cell system. Experimental chronic otitis media was produced by the injection of glycerin into the middle ear cleft of piglings aged from 5 days to 5 weeks after birth. The piglings were subsequently decapitated and...

Journal: :AJNR. American journal of neuroradiology 1999
J S Lewin H D Curtin E Eelkema N Obuchowski

BACKGROUND AND PURPOSE There is a wide range of normal variation is sphenoid sinus development, especially in the size of the lateral recesses. The purpose of this study was to determine imaging characteristics that may help differentiate between opacification of a developmentally asymmetric lateral recess and a true expansile lesion of the sphenoid sinus. METHODS Coronal CT was performed in ...

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