نتایج جستجو برای: cranial sinuses

تعداد نتایج: 31161  

Journal: :British journal of anaesthesia 1988
M Hansen M R Poulsen D K Bendixen F Hartmann-Andersen

Sinusitis is a complication known to accompany nasotracheal intubation, but its frequency has not been well documented. Twelve patients suffering from cerebral haemorrhage or from cranial trauma and treated with mechanical ventilation were examined for radiological and bacteriological signs of sinusitis with CT-scanning, and cultures of nasal pus discharge. All patients showed radiological sign...

Journal: :Journal of pediatric ophthalmology and strabismus 2009
Jiao Yonghong Zhao Kanxing Wang Zhenchang Wu Xiao Qian Xuehan Man Fengyuan Lu Wei Zhang Fanghua Nathan H Schramm

PURPOSE To study the neuroanatomic characteristics of patients with Duane's retraction syndrome with high-resolution magnetic resonance imaging. METHODS The study included 11 consecutive cases, including five patients with type I, one patient with type II, four patients with type III, and one patient with inverse Duane's retraction syndrome. The patients underwent magnetic resonance imaging o...

Journal: :Acta neurochirurgica. Supplement 2008
J D Pickard Z Czosnyka M Czosnyka B Owler J N Higgins

BACKGROUND Narrowing of the cranial dural venous sinuses has been implicated as contributing to elevated intracranial pressure in idiopathic intracranial hypertension [IIH]. Such narrowing may be either a fixed stenosis or secondary to raised ICP. We have investigated whether narrowing of the venous sinuses may reflect direct coupling between cerebrospinal fluid pressure and sagittal sinus pres...

Journal: :Journal of human evolution 2011
Todd C Rae Thomas Koppe Chris B Stringer

Many morphological features of the Pleistocene fossil hominin Homo neanderthalensis, including the reputed large size of its paranasal sinuses, have been interpreted as adaptations to extreme cold, as some Neanderthals lived in Europe during glacial periods. This interpretation of sinus evolution rests on two assumptions: that increased craniofacial pneumatization is an adaptation to lower ambi...

Journal: :caspian journal of internal medicine 0
mahtab rahbar kaykhosro mardanpour

background: giant cell tumor is a benign but locally aggressive bone neoplasm which uncommonly involves the skull. giant cell tumor (gct) of the sphenoid bone is relatively rare. in this report, we describe a tumor of the greater wing of left sphenoid bone. case presentation: a 31-year-old female was presented with headache, proptosis and diplopia of her left eye. cranial magnetic resonance ima...

Journal: :AJNR. American journal of neuroradiology 1984
A E Yeates B Blumenkopf B P Drayer R H Wilkins D Osborne E R Heinz

When patients present with spontaneous cerebrospinal fluid (CSF) rhinorrhea the primary diagnostic goal is localizing the site of leakage so that an appropriate approach for surgical repair can be selected. Metrizamide computed tomography (CT) has become the preferred method for investigating CSF rhinorrhea for several reasons [1-4]. CT provides superb bone detail so that fractures or areas of ...

2016
Fernando E. Silva

A variety of novel surgical approaches have been developed in recent years to manage disease of the cranial base. Few offer the width and depth of exposure achievable with the extended transbasal approach. This approach combines a bifrontal craniotomy with an orbitonasal or orbitonasoethmoidal osteotomy, and potentially a sphenoethmoidotomy to provide broad access to malignancies of the anterio...

Journal: :Proceedings. Biological sciences 2006
Todd C Rae Una Strand Vidarsdóttir Nathan Jeffery A Theodore Steegmann

Adaptation to climate occupies a central position in biological anthropology. The demonstrable relationship between temperature and morphology in extant primates (including humans) forms the basis of the interpretation of the Pleistocene hominin Homo neanderthalensis as a cold-adapted species. There are contradictory signals, however, in the pattern of primate craniofacial changes associated wi...

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