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https://www.readbyqxmd.com/read/28092136/computational-fluid-dynamic-modeling-of-nose-to-ceiling-head-positioning-for-sphenoid-sinus-irrigation
#1
John R Craig, James N Palmer, Kai Zhao
BACKGROUND: After sinus surgery, patients are commonly instructed to irrigate with saline irrigations with their heads over a sink and noses directed inferiorly (nose-to-floor). Although irrigations can penetrate the sinuses in this head position, no study has assessed whether sphenoid sinus penetration can be improved by irrigating with the nose directed superiorly (nose-to-ceiling). The purpose of this study was to use a validated computational fluid dynamics (CFD) model of sinus irrigations to assess the difference in sphenoid sinus delivery of irrigations after irrigating in a nose-to-floor vs nose-to-ceiling head position...
January 16, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28091449/crouzon-syndrome-with-multiple-supernumerary-teeth
#2
G S Torun, A Akbulut
Crouzon syndrome (CS) is an autosomal dominant disorder characterized by craniofacial deformities caused by the early closure of cranial sutures. It is diagnosed by the presence of a flat sphenoid bone, protrusion of eyeballs (exophthalmos), and midfacial hypoplasia. Although hypodontia is usually present in cases with CS, supernumerary teeth are rarely seen. A 16-year-old male patient with CS was referred to our clinic. He had a high forehead, beaked nose, hypertelorism, palpebral ptosis, and asymmetrical orbits...
February 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28089839/maxillary-artery-to-middle-cerebral-artery-bypass-a-novel-technique-for-exposure-of-the-maxillary-artery
#3
Kaan Yagmurlu, M Yashar S Kalani, Nikolay L Martirosyan, Sam Safavi-Abbasi, Evgenii Belykh, Avra S Laarakker, Peter Nakaji, Joseph M Zabramski, Mark C Preul, Robert F Spetzler
OBJECTIVES: Define the maxillary artery (MaxA) anatomy and present a novel technique for exposing and preparing this vessel as a bypass donor. METHODS: Cadaveric and radiological studies were used to define the MaxA anatomy and illustrate a novel method for harvesting and preparing it for extracranial-to-intracranial bypass. RESULTS: The MaxA runs parallel to the frontal branch of the superficial temporal artery (STA) and is located on average 24...
January 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28086986/radioiodine-sinus-uptake-related-to-mucosal-thickening-or-aspergilloma-a-case-series-of-an-unrecognized-event-well-evidenced-by-spect-ct
#4
Renaud Ciappuccini, David Blanchard, Jean-Pierre Rame, Dominique de Raucourt, Emmanuel Babin, Stéphane Bardet
BACKGROUND: False-positive radioiodine (RAI) uptake related to chronic sinusitis and mucocele has only rarely been reported in patients with differentiated thyroid cancer (DTC) even with the recent use of single photon emission tomography with computed tomography (SPECT/CT) acquisition. No other etiology of sinus RAI uptake has been mentioned to date. OBJECTIVES: We report five cases of DTC patients with sinus RAI uptake on post-RAI scintigraphy. SPECT/CT clearly localized RAI uptake either in the sphenoid, the maxillary or the frontal sinus and highly suspected mucosal thickening in four patients and sinus aspergilloma in one patient...
January 13, 2017: Cancer Imaging: the Official Publication of the International Cancer Imaging Society
https://www.readbyqxmd.com/read/28067974/prognostic-value-of-the-seventh-ajcc-uicc-tnm-classification-of-intestinal-type-ethmoid-adenocarcinoma-systematic-review-and-risk-prediction-model
#5
Domitille Fiaux-Camous, Sylvie Chevret, Natalie Oker, Mario Turri-Zanoni, Davide Lombardi, Olivier Choussy, Duprez Frederic, Marc Jorissen, Ludovic de Gabory, Olivier Malard, Philippe Herman, Piero Nicolai, Paolo Castelnuovo, Frederic Duprez Benjamin Verillaud
BACKGROUND: The purpose of this study was to propose a prognostic classification of intestinal-type adenocarcinoma (ITAC) based on literature search and prognostic modeling of cohort data. METHODS: We first conducted a literature search to assess the homogeneity of the reported estimates of 5-year survival and to identify the influence of T classification. We then pooled prospective data from 3 large French and Italian series to predict time to all-cause mortality...
January 9, 2017: Head & Neck
https://www.readbyqxmd.com/read/28065874/is-complex-sphenoidal-sinus-anatomy-a-contraindication-to-a-transsphenoidal-approach-for-resection-of-sellar-lesions-presentation-of-a-case-series-and-review-of-the-literature
#6
Marco Locatelli, Andrea Di Cristofori, Riccardo Draghi, Giulio Bertani, Claudio Guastella, Lorenzo Pignataro, Giovanna Mantovani, Paolo Rampini, Giorgio Carrabba
BACKGROUND: The transsphenoidal approach (TNS) is considered the gold standard for resection of pituitary adenomas and other sellar region lesions. This approach is guided by few fundamental anatomical landmarks that conduct the surgeon toward the sellar floor. Some anatomical structures may vary a lot (e.g. intrasphenoidal septa, intercarotid distance) and may be difficult to identify. Among those structures, the pneumatization and conformation of the sphenoidal sinus (SS) plays a key role for accessing the floor of the sella and other skull base structures...
January 5, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28063243/local-extension-staging-of-sinonasal-tumors-retrospective-comparison-between-ct-mri-assessment-and-pathological-findings
#7
Geoffrey Mortuaire, Domitille Camous, Claire Vandenhende-Szymanski, Frédérique Dubrulle, Dominique Chevalier
OBJECTIVES: To assess the reliability of clinical staging with CT and MRI in sinonasal cancers. METHODS: We conducted a retrospective review of patients who underwent surgery for a sinonasal cancer. The 7(th) edition of the TNM classification was used to establish tumor staging. Standardized preoperative CT/MRI staging was compared with the pathological staging based on specimens obtained during surgery from each subsite within and around the tumor. RESULTS: We analyzed data from 68 patients between January 2010 and December 2014...
January 7, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28060098/the-manangement-of-the-paranasal-sinus-osteomas
#8
Hasan Hüseyin Arslan, Hamdi Tasli, Süleyman Cebeci, Mustafa Gerek
OBJECTIVE: Osteoma is the most common benign tumor of the paranasal sinuses. The clinical characteristics and treatment of this disease remain controversial. The aim of this study is to determine the appropriate method of treatment approach according to the features of osteomas. METHODS: Forty-one patients with paranasal sinus osteomas were included in the study. According to the location and the size of tumors, patients were followed up or operated. Surgical treatment was performed via external, endoscopic, or combined approaches for symptomatic patients...
January 5, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28053848/rapid-development-of-a-mycotic-aneurysm-of-the-intracranial-artery-secondary-to-scedosporium-apiospermum-sinusitis
#9
Yoshihiko Ogawa, Masatoshi Sato, Masato Tashiro, Masayuki Miyazaki, Kiyoshi Nagata, Nobuyuki Takahashi, Kei Kasahara, Koichi Izumikawa, Hisakazu Yano, Keiichi Mikasa
An 85-year-old man complained of a 2-month history of pain on the left side of his face. Brain computed tomography (CT) and magnetic resonance imaging/magnetic resonance angiography did not clearly show any intracranial abnormality and only showed fluid effusion in his left sphenoid sinus. Filamentous fungi were detected from the left sphenoid sinus specimen. The isolate was Scedosporium apiospermum. He was empirically treated with voriconazole, to which the isolate was susceptible. His consciousness decreased rapidly...
December 2016: Medical Mycology Case Reports
https://www.readbyqxmd.com/read/28051992/clostridium-sphenoides-chronic-osteomyelitis-diagnosed-via-matrix-assisted-laser-desorption-ionization-time-of-flight-mass-spectrometry-conflicting-with-16s-rrna-sequencing-but-confirmed-by-whole-genome-sequencing
#10
Matthew J Perkins, Erik Snesrud, Patrick McGann, Christopher A Duplessis
We report a case of successful treatment of chronic osteomyelitis (emanating from contaminated soil exposure) caused by Clostridium sphenoides, an organism infrequently identified as a cause of human infection and more saliently osteomyelitis (only 1 reported case in the literature). Additional impetus for reporting this case resides in the insights gained regarding pathogen identification exploiting sophisticated molecular platforms coupled to traditional microbial culture-based methods. The fastidious nature of cultivating anaerobic organisms required initial attempts at 16S rRNA sequencing to identify a Clostridium species (Clostridium celerecrescens)...
January 2017: Military Medicine
https://www.readbyqxmd.com/read/28050720/indocyanine-green-visualization-of-middle-meningeal-artery-before-craniotomy-during-surgical-revascularization-for-moyamoya-disease
#11
Nozomu Tanabe, Shusuke Yamamoto, Daina Kashiwazaki, Naoki Akioka, Naoya Kuwayama, Kyo Noguchi, Satoshi Kuroda
BACKGROUND: The middle meningeal artery (MMA) is well known to function as an important collateral channel to the territory of the anterior cerebral artery in moyamoya disease. This study was aimed to evaluate whether indocyanine green (ICG) videoangiography could visualize the anterior branch of the MMA before craniotomy during surgical revascularization for moyamoya disease. METHODS: This study included 19 patients who developed TIA, ischemic stroke or hemorrhagic stroke due to moyamoya disease...
January 3, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28050478/multiple-cerebrovascular-complications-due-to-sphenoid-sinusitis
#12
Raghu Teja Sadineni, Sandeep Velicheti, Chandra Sekhar Kondragunta, Narayan Chander Bellap
Sphenoiditis is of particular interest because the sphenoid sinus has thin wall and its special anatomical location facilitate dissemination of infection to many intracranial structures including vascular structures. The main objective of this report is to gain insight into patterns of presentation and imaging findings in cerebrovascular complications of sphenoid sinusitis and to emphasize the need of reviewing Brain Computed Tomography Scan in all windows. This is a report of 32-year-old young female presented with fever and headache who was diagnosed to have sphenoid sinusitis after radiological examination...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28050353/an-osteologic-study-of-cranial-opening-of-optic-canal-in-gujarat-region
#13
Binita Jigneshkumar Purohit, Praveen R Singh
INTRODUCTION: Optic canal is a bony canal situated in between the roots of lesser wings of sphenoid, lateral to body of sphenoid. It transmits optic nerve and ophthalmic artery, surrounded by meninges. Various authors have studied variations in skull foramina and correlated clinically, as variants in the body structures have been found to be associated with many inherited or acquired diseases. AIM: The present study aimed to examine morphologic and morphometric variations in cranial openings of optic canals...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28042017/-the-extended-lateral-supraorbital-approach-and-extradural-anterior-clinoidectomy-through-a-fronto-pterio-orbital-window-technical-note-and-pilot-surgical-series
#14
Hugo Andrade-Barazarte, Max Jägersberg, Sirajeddin Belkhair, Rachel Tymianski, Mazda K Turel, Karl Schaller, Juha A Hernesniemi, Michael Tymianski, Ivan Radovanovic
BACKGROUND: Lateral approaches to treat anterior cranial fossa lesions have evolved since the first frontotemporal approach described by Dandy in 1918 OBJECTIVE: To describe a less invasive approach to perform an extradural anterior clinoidectomy (EAC) through a lateral supraorbital approach (LSO) for anterior circulation aneurysms and antero-lateral skull base lesions METHODS: The extended LSO involves performing a standard lateral supraorbital craniotomy, followed by drilling of the sphenoid wing and the lateral wall of the orbit through the frontal bony opening of the LSO without any temporal extension of the craniotomy...
December 29, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/28032679/acr-appropriateness-criteria-%C3%A2-nasal-cavity-and-paranasal-sinus-cancers
#15
Farzan Siddiqui, Richard V Smith, Sue S Yom, Jonathan J Beitler, Paul M Busse, Jay S Cooper, Ehab Y Hanna, Christopher U Jones, Shlomo A Koyfman, Harry Quon, John A Ridge, Nabil F Saba, Francis Worden, Min Yao, Joseph K Salama
The American College of Radiology (ACR) Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision include an extensive analysis of current medical literature from peer-reviewed journals and the application of well-established methodologies (RAND/UCLA Appropriateness Method and Grading of Recommendations Assessment, Development, and Evaluation or GRADE) to rate the appropriateness of imaging and treatment procedures for specific clinical scenarios...
December 29, 2016: Head & Neck
https://www.readbyqxmd.com/read/28009611/pituitary-adenomas-presenting-as-sinonasal-or-nasopharyngeal-masses-a-case-series-illustrating-potential-diagnostic-pitfalls
#16
Martin D Hyrcza, Shereen Ezzat, Ozgur Mete, Sylvia L Asa
We present a series of nonectopic pituitary adenomas presenting as polypoid sinonasal or nasopharyngeal masses. Thirteen cases diagnosed by biopsies from the nasal cavity, sinuses, or nasopharynx were identified from a series of 1288 surgical pituitary specimens. The patients included 5 men and 8 women ranging from 29 to 69 years of age. The presentations included nasal obstruction (4 cases), headaches (3), visual defects (2), recurrent nose bleeds (1), rhinorrhea (1), sepsis (1), fatigue (1), and hyperthyroidism (1)...
December 22, 2016: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28007843/clinical-characteristics-and-management-of-growth-hormone-excess-in-patients-with-mccune-albright-syndrome
#17
Yong Yao, Yang Liu, Lin Jie Wang, Kan Deng, Hongbo Yang, Lin Lu, Feng Feng, Bing Xing, Hui You, Zimeng Jin, Renzhi Wang, Hui Pan, Shi Chen, Hui Juan Zhu
OBJECTIVE: McCune-Albright syndrome (MAS) is a sporadic, postzygotic disease presenting with fibrous dysplasia, cafe-au-lait spots and multiple endocrinopathies. Growth hormone (GH) excess is an uncommon but potentially severe complication of MAS. This study aims to describe the clinical manifestations of GH excess in the context of MAS, and analyze the responses of these patients to treatments. DESIGN: Retrospective clinical study. METHODS: Clinical data from 52 MAS patients were analyzed...
December 22, 2016: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28006058/an-expansile-mass-of-the-sphenoid-sinus-or-petrous-apex
#18
Jason D Pou, Michael J Marino, Rizwan Aslam
No abstract text is available yet for this article.
December 22, 2016: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/27996195/histological-and-clinical-evaluation-of-the-hard-palate-mucous-membrane-graft-for-treatment-of-lower-eyelid-retraction
#19
Sofie D H Larsen, Steffen Heegaard, Peter B Toft
PURPOSE: To evaluate the histological appearances of the epithelial cells and the clinical effect of the hard palate mucous membrane (HPM) graft for the treatment of lower eyelid retraction (LER). METHODS: This was a follow-up study involving 15 patients, with a total of 16 eyes operated. Five patients had LER as a result of Graves' ophthalmopathy and/or inferior rectus recession, six patients because of wearing an eye prosthesis, two patients because of previous tumour excision, one patient because of proptosis due to sphenoid wing meningioma and one patient because of previous lower eyelid blepharoplasty...
December 20, 2016: Acta Ophthalmologica
https://www.readbyqxmd.com/read/27993737/bolstering-the-nasoseptal-flap-using-sphenoid-sinus-fat-packing-a-technical-case-report
#20
Hussam Abou-Al-Shaar, Hasan A Zaidi, David J Cote, Edward R Laws
BACKGROUND: Resection of extensive skull base lesions often necessitates relatively large dural openings and arachnoid, resulting in skull base defects with the potential for a post-operative cerebrospinal fluid (CSF) leak. A nasoseptal flap (NSF) is a vascularized graft which has greatly diminished the incidence of CSF leak. Annealing of flaps against the ventral skull base can be tenuous within the first few days after surgery. We report the use of sphenoid sinus fat packing as a buttress to support the nasoseptal flap during skull base reconstruction...
December 16, 2016: World Neurosurgery
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