keyword
MENU ▼
Read by QxMD icon Read
search

Skull base

keyword
https://www.readbyqxmd.com/read/29342033/meningoencephalocele-and-cerebrospinal-fluid-leak-complicating-orbital-decompression
#1
Liza M Cohen, Juan C Jiménez Pérez, Eric H Holbrook, William T Curry, Michael K Yoon
A 51-year-old man who had undergone right orbital decompression 5 months earlier developed a meningoencephalocele extending in the right sphenoid sinus through a skull base defect of the right ethmoid, sphenoid, and frontal bones. The authors report the third case to their knowledge of meningoencephalocele with cerebrospinal fluid leak after orbital decompression and discuss its management and measures that can be taken to prevent this rare but serious complication.
January 16, 2018: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29341337/endoscopic-endonasal-approach-for-sinonasal-and-anterior-skull-base-malignancies-in-the-elderly
#2
Davide Lepera, Federico Leone, Luca Volpi, Maurizio Bignami, Apostolos Karligkiotis, Alessia Lambertoni, Andrea Pistochini, Remo Accorona, Piero Nicolai, Paolo Castelnuovo
BACKGROUND: The purpose of this study was to report the outcomes of endoscopic transnasal resection for sinonasal and anterior skull-base cancers in elderly patients. METHODS: A retrospective review was performed. The patients were divided into 2 groups, <70 years old and ≥70 years old and compared by univariate analysis. Prognostic factors were evaluated with a multivariate analysis. Survival rates were also calculated. RESULTS: Two hundred three elderly patients and 397 younger patients were enrolled in this study...
January 17, 2018: Head & Neck
https://www.readbyqxmd.com/read/29340682/embers-pet-ct-skull-base-to-mid-thighs
#3
Carol Snyder Halberstadt
No abstract text is available yet for this article.
January 16, 2018: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/29340238/a-revised-cranial-description-of-massospondylus-carinatus-owen-dinosauria-sauropodomorpha-based-on-computed-tomographic-scans-and-a-review-of-cranial-characters-for-basal-sauropodomorpha
#4
Kimberley E J Chapelle, Jonah N Choiniere
Massospondylus carinatus is a basal sauropodomorph dinosaur from the early Jurassic Elliot Formation of South Africa. It is one of the best-represented fossil dinosaur taxa, known from hundreds of specimens including at least 13 complete or nearly complete skulls. Surprisingly, the internal cranial anatomy of M. carinatus has never been described using computed tomography (CT) methods. Using CT scans and 3D digital representations, we digitally reconstruct the bones of the facial skeleton, braincase, and palate of a complete, undistorted cranium of M...
2018: PeerJ
https://www.readbyqxmd.com/read/29339964/cerebral-venous-thrombosis-with-papilloedema-secondary-to-skull-base-plasmacytoma
#5
Peter W MacIntosh, Amy Y Lin, Jin Suh Kim, Fernando D Testai, Heather E Moss
A 60-year-old woman with history of multiple myeloma was in remission after stem cell transplant 6 years prior. She was undergoing work-up for headaches that were thought to be secondary to a right mastoiditis seen on magnetic resonance imaging (MRI). On routine eye exam, papilloedema was noted. A lumbar puncture was performed, with elevated opening pressure with normal constituents. She was an atypical age for idiopathic intracranial hypertension, and her mastoiditis raised concern for secondary cerebral venous sinus thrombosis...
October 2017: Neuro-ophthalmology
https://www.readbyqxmd.com/read/29339322/endoscopic-endonasal-craniofacial-surgery-for-recurrent-skull-base-meningiomas-involving-the-pterygopalatine-fossa-the-infratemporal-fossa-the-orbit-and-the-paranasal-sinus
#6
Masahiro Shin, Masaaki Shojima, Kenji Kondo, Hirotaka Hasegawa, Shunya Hanakita, Akihiro Ito, Taichi Kin, Nobuhito Saito
OBJECT: Skull base meningiomas carry a non-negligible risk of recurrence. In particular, those arising from the sphenoid wings or middle cranial fossa penetrate into extracranial regions, uncommonly showing massive expansion into the craniofacial regions on recurrence. The role of endoscopic endonasal surgery for those intractable lesions remains unclear. METHODS: We performed endoscopic endonasal craniofacial surgery for 8 recurrent meningiomas invading into the pterygopalatine fossa, infratemporal fossa, nasopharynx, paranasal sinus, or orbit, comprising 2 meningothelial and 1 fibrous meningiomas (WHO grade I), 3 atypical and 1 clear cell meningiomas (grade II), and 1 anaplastic meningioma (grade III)...
January 12, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29339321/internal-thoracic-artery-to-middle-cerebral-artery-bypass-surgery-cadaveric-feasibility-study
#7
Stephen Monteith, Oded Goren, Ragu Sampath, Eric Lehr, Akshal Patel, Paul J Choi, Joe Iwanaga, Marios Loukas, R Shane Tubbs
BACKGROUND: A few options of extracranial donor vessels exist for utilization in intracranial vascular bypass procedures. To our knowledge, the use of an internal thoracic artery for cerebral revascularization has not been studied previously. Hence, this cadaveric feasibility study was performed. METHODS: The internal thoracic artery was dissected in five adult cadaveric specimens. The proximal diameter, distal diameter, and the length of the vessel were measured and recorded...
January 12, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29338455/current-treatment-options-for-meningioma
#8
Caroline Apra, Matthieu Peyre, Michel Kalamarides
With an annual incidence of 5/100,000, meningioma is the most frequent primary tumor of the central nervous system. Risk factors are radiotherapy and hormone intake. Most meningiomas are grade I benign tumors, but up to 15% are atypical and 2% anaplastic according to the WHO 2016 histological criteria. Areas covered: This review details the current standard therapy based on international guidelines and recent literature, and describes new approaches developed to treat refractory cases. First-line treatments are observation and surgery, but adjuvant radiotherapy/radiosurgery is discussed for atypical and indicated for anaplastic meningiomas...
January 17, 2018: Expert Review of Neurotherapeutics
https://www.readbyqxmd.com/read/29338280/variable-skeletal-anatomical-features-of-acromegaly-in-the-skull-and-craniocervical-junction
#9
Maria Piagkou, Othon Manolakos, Theodore Troupis, Nikolaos Lazaridis, Konstantinos Laios, Alexandros Samolis, Konstantinos Natsis
OBJECTIVE: This study adds important information regarding the morphological alterations caused by growth hormone hypersecretion in the skull and craniocervical junction (CCJ). A variably asymmetric skull due to acromegaly coexists with expansion of the paranasal sinuses and multiple Wormian bones. CASE REPORT: A pathologically asymmetric dry skull of a European male, aged 38 years at death, with cranial vault and skull base thickening is described. The extensive paranasal sinus pneumatization caused a generalized thinning of the bony walls...
November 2017: Acta Medica Academica
https://www.readbyqxmd.com/read/29336295/transnasal-endoscopic-resection-of-pediatric-orbital-cyst-how-i-do-it
#10
Jingying Ma, Zhenxiao Huang, Bing Zhou
BACKGROUND: An orbital cystic lesion is a common orbital disease and has classically been approached via external incision. The introduction of endoscopic surgery has revolutionized the management of sinus and skull base disorders. Similarly, endoscopic techniques have been increasingly used to access intraorbital lesions with excellent outcomes, especially in pediatric patients. OBJECTIVE: We described, in detail, the surgical technique of the endoscopic approach to treat a pediatric orbital cyst...
January 1, 2018: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/29336293/using-the-nasoseptal-flap-for-reconstruction-after-endoscopic-debridement-of-radionecrosis-in-nasopharyngeal-carcinoma
#11
Gwanghui Ryu, Yoon Kyoung So, Min Young Seo, Woori Park, Hyo Yeol Kim, Hun-Jong Dhong, Seung-Kyu Chung, Sang Duk Hong
BACKGROUND: Radionecrosis is a complication of nasopharyngeal carcinoma (NPC) that is difficult to treat. Endoscopic debridement is the first-line treatment for radionecrosis. After debridement, however, either bone or the internal carotid artery is exposed and requires mucosal coverage. OBJECTIVES: This study sought to demonstrate the effectiveness of a nasoseptal flap (NSF) after endoscopic debridement of radionecrosis in the reconstruction of nasopharyngeal or skull base defects...
January 25, 2018: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/29336291/extent-of-surgery-in-endoscopic-transsphenoidal-skull-base-approaches-and-the-effects-on-sinonasal-morbidity
#12
Vincent Wu, Michael D Cusimano, John M Lee
BACKGROUND: Endoscopic transsphenoidal skull base surgery (ETSS) is now considered the criterion standard approach for resection of pituitary adenomas and other midline anterior skull base lesions. Normal sinonasal structures are resected during ETSS, which raises concerns for nasal morbidity and patient-based outcome. OBJECTIVE: To perform a surgical outcome assessment by examining whether the extent of ETSS approaches affected patient-specific sinonasal quality of life as measured by the 22-item Sino-Nasal Outcome Test (SNOT-22)...
January 1, 2018: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/29335798/3d-morphological-change-of-skull-base-and-fronto-temporal-soft-tissue-in-the-patients-with-unicoronal-craniosynostosis-after-fronto-orbital-advancement
#13
Bin Yang, Jian Ni, Binghang Li
PURPOSE: This study aims to comprehensively evaluate the deformation of the skull base and fronto-temporal soft tissue in the patients with anterior plagiocephaly over 1 year of age by three-dimensional (3D) imaging after fronto-orbital advancement (FOA). METHODS: We quantitatively analyzed the surgical results and outcome of FOA performed in 10 patients with anterior plagiocephaly. The measurements of the skull base and fronto-temporal soft tissue were performed based on 3D computed tomography (CT) scan...
January 15, 2018: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29335780/a-comparison-of-semi-automated-volumetric-vs-linear-measurement-of-small-vestibular-schwannomas
#14
Samuel MacKeith, Tilak Das, Martin Graves, Andrew Patterson, Neil Donnelly, Richard Mannion, Patrick Axon, James Tysome
OBJECTIVE: Accurate and precise measurement of vestibular schwannoma (VS) size is key to clinical management decisions. Linear measurements are used in routine clinical practice but are prone to measurement error. This study aims to compare a semi-automated volume segmentation tool against standard linear method for measuring small VS. This study also examines whether oblique tumour orientation can contribute to linear measurement error. STUDY DESIGN: Experimental comparison of observer agreement using two measurement techniques...
January 15, 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29335580/widespread-bone-based-fluorescence-in-chameleons
#15
David Prötzel, Martin Heß, Mark D Scherz, Martina Schwager, Anouk Van't Padje, Frank Glaw
Fluorescence is widespread in marine organisms but uncommon in terrestrial tetrapods. We here show that many chameleon species have bony tubercles protruding from the skull that are visible through their scales, and fluoresce under UV light. Tubercles arising from bones of the skull displace all dermal layers other than a thin, transparent layer of epidermis, creating a 'window' onto the bone. In the genus Calumma, the number of these tubercles is sexually dimorphic in most species, suggesting a signalling role, and also strongly reflects species groups, indicating systematic value of these features...
January 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29334772/spontaneous-regression-of-a-large-skull-base-meningioma-case-report
#16
Ashwin Kumaria, Harshal A Ingale, Donald C Macarthur
We present the case of a 58 year old lady with a large middle cranial fossa meningioma (5 cm × 4 cm in maximal dimensions) which has considerably regressed without any treatment during seven years of follow up. While the tumour had remained radiologically static for the first three years, scans from year five post-diagnosis onwards have shown shrinkage of the meningioma from a calculated volume of 36 cm3 to 11.2 cm3. There has been no intratumoral haemorrhage or infarction and no medication or exogenous hormonal effect that could account for this effect...
January 15, 2018: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/29332500/microstructure-and-mechanical-properties-of-porous-titanium-structures-fabricated-by-electron-beam-melting-for-cranial-implants
#17
Khaja Moiduddin
The traditional methods of metallic bone implants are often dense and suffer from adverse reactions, biomechanical mismatch and lack of adequate space for new bone tissue to grow into the implant. The objective of this study is to evaluate the customized porous cranial implant with mechanical properties closer to that of bone and to improve the aesthetic outcome in cranial surgery with precision fitting for a better quality of life. Two custom cranial implants (bulk and porous) are digitally designed based on the Digital Imaging and Communications in Medicine files and fabricated using additive manufacturing...
January 1, 2018: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/29332078/magnetic-resonance-guided-high-intensity-focused-ultrasound-for-treating-movement-disorders
#18
Young Goo Kim, Eun Jung Kweon, Won Seok Chang, Hyun Ho Jung, Jin Woo Chang
Transcranial magnetic resonance-guided focused ultrasound (MRgFUS) surgery has recently gained favor as a novel, noninvasive alternative to conventional neurosurgery. In contrast to traditional ablative interventions, transcranial MRgFUS surgery is entirely imaging-guided and uses continuous temperature measurements at the target and surrounding tissue taken in real-time. Unlike Gamma Knife radiosurgery, MRgFUS surgery can make a lesion immediately and does not use ionizing radiation. Moreover, since no metallic device is implanted, MR imaging-based diagnosis is not restricted throughout life...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29331747/dural-based-cavernous-malformation-at-the-cerebral-convexity-report-of-two-pediatric-patients
#19
Guichen Li, Xuan Zhai, Yang Zhang, Ping Liang, Xuanxuan Wu, Kun Hou
BACKGROUND: Intracranial (cavernous malformations) CMs are usually located at the cerebral parenchyma, dural-based CMs outside the middle fossa are rarely reported. To our knowledge, dural-based CMs located at the cerebral convexity are even rarer that only two pediatric cases were ever reported. In this report, we present two extremely rare cases of dural-based CMs at the cerebral convexity in pediatric patients. The clinical course, radiological and pathological features, treatment, and follow-up are described...
January 10, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29330950/comparative-anatomy-of-bat-jaw-musculature-via-diffusible-iodine-based-contrast-enhanced-computed-tomography
#20
Sharlene E Santana
Noctilionoid bats exhibit an extraordinary array of cranial specializations that match diverse diets, including variation in jaw musculature physiological cross-sectional areas (PCSA), lever arms, and relative contribution to bite force. Although previous research in this group has linked variation in skull shape and muscle mechanics to biting performance, there are still important gaps about the anatomical underpinnings of noctilionoid dietary adaptations, including the degree of compartmentalization of the jaw musculature, and whether and how muscle attachment sites have evolved across noctilionoid species that specialize on derived diets...
February 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
keyword
keyword
7617
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"