نتایج جستجو برای: sphenoid sinus

تعداد نتایج: 42738  

Journal: :Clinical Neuroradiology 2006

2016
Natamon Charakorn Kornkiat Snidvongs

Chronic sphenoid rhinosinusitis is a spectrum of inflammatory diseases in isolated sphenoid sinus which may persist over a period of 12 weeks. It is a different entity from other types of rhinosinusitis because clinical presentations include headache, visual loss or diplopia, and patients may or may not have nasal obstruction or nasal discharge. Nasal endoscopic examination is useful, and compu...

Journal: :American journal of rhinology & allergy 2009
Heitham Gheriani David Flamer Trent Orton Brad Mechor Amin R Javer

BACKGROUND Endoscopic management of sphenoid sinus disease has great potential for surgical complications. A variety of endoscopic surgical techniques have been described for entering the sphenoid sinus. The utility of these surgical techniques is based on the position of the superior turbinate attachment to the sphenoid face (Parson's ridge). We introduce a novel computerized tomography (CT) g...

2015
YEXUN SONG TIANSHENG WANG JIANGBO CHEN GUOLIN TAN

A conchal non-pneumatized sphenoid sinus was previously considered to be a contraindication to the endoscopic transsphenoidal route to the sella due to its small sellar floor and poor anatomical landmarks, such as the optic nerve canal, opticocarotid recess and internal carotid arteries canal. The present study aimed to investigate the methodology and characteristics of the endoscopic transsphe...

Journal: :European review for medical and pharmacological sciences 2011
M Dogan A S Kahraman C Firat B Kahraman E Karatas A Kizilay

Intraosseous lipoma is an uncommon mesenchymal tumor that is frequently found in appendecular skeleton. In extremely rare conditions, it can appear in sphenoid bone, and only 2 cases have been described in literature until now. We present a case of lipoma in the body of the sphenoid bone mimicking sphenoid sinus tumor. A 16-year-old man presented to Department of Otorhinolaryngology with a comp...

2013
T. Berger Peter Hastreiter Christian Münzenmayer Michael Buchfelder Thomas Wittenberg

For operations of the pituitary glands, the most subtle method is an intervention through the paranasal and especially through the sphenoid sinus. To avoid dangerous interference with adjacent organs and nerves, the surgeon has to orient himself in the very small sphenoid cavity and navigate across the hollow space to break through the sellar floor to the pituitary gland above. Especially in re...

2011
Andrzej Sieskiewicz Tomasz Lyson Ewa Olszewska Magdalena Chlabicz Simona Buonamassa Marek Rogowski

BACKGROUND Isolated sphenoid sinus pathologies are relatively rare. In the majority of cases, symptoms do not arise in the early stages of the disease or are non-specific, therefore making diagnosis difficult. The aim of this study was to investigate the diagnostic process and the reasons for development of complications in patients with isolated sphenoid sinus pathology. MATERIAL/METHODS The...

Journal: :AJNR. American journal of neuroradiology 2008
A D King A T Ahuja S-F Leung J Abrigo J K T Wong W S Poon K S Woo H S Chan G M K Tse

BACKGROUND AND PURPOSE The development of a new polyp or mass in the radiation field of a previously treated carcinoma is usually an ominous sign of a recurrent cancer, but rarely may it be caused instead by a nonmalignant process. The purpose of this study was to document the MR appearance of unusual nonmalignant polyps or masses (NMPMs) in the nasopharynx and sphenoid sinus arising after radi...

Journal: :Archives of otolaryngology--head & neck surgery 2003
Andrey S Lopatin Dmitry N Kapitanov Alexander A Potapov

OBJECTIVE To analyze possible etiological factors of spontaneous cerebrospinal fluid (CSF) rhinorrhea and to assess the outcomes of endonasal endoscopic repair. DESIGN Retrospective study. SETTING Academic neurosurgical hospital. Patients Twenty-one consecutive patients who presented with spontaneous CSF leak and underwent endonasal endoscopic surgery from January 1999 through December 2001...

Journal: :Mycoses 2006
Hemant Chopra Kapil Dua Vineeta Malhotra Rishi Pal Gupta Harpreet Puri

Invasive fungal sinusitis of the paranasal sinuses in a healthy immunocompetent person is uncommon. Isolated involvement of any paranasal sinus, particularly sphenoid sinus is rare. In this study, five immunocompetent patients who had no nasal complaints but obscure symptoms of headache and orbital symptoms such as diplopia, retro-orbital pain and loss of vision were diagnosed to be having fulm...

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