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Lateral skull base

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https://www.readbyqxmd.com/read/28207524/in-stent-stenosis-in-the-patient-with-internal-carotid-aneurysm-after-treated-by-the-willis-covered-stent-two-case-reports-and-literature-review
#1
Lun-Xin Liu, Meng-Yuan Song, Xiao-Dong Xie
: In-stent stenosis after treated by Willis covered stent-case reports. BACKGROUND: Advancements in minimally invasive technology have allowed endovascular reconstruction of internal carotid aneurysm. However, in-stent stenosis is an important and well-characterized complication of stenting after the treatment of internal carotid aneurysm. CASE DESCRIPTION: We would present 2 patients who were diagnosed with in-stent stenosis after the treatment of Willis covered stent...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28197759/minimally-invasive-multi-port-approach-to-the-lateral-skull-base-a-first-in-vitro-evaluation
#2
Igor Stenin, Stefan Hansen, M Nau-Hermes, W El-Hakimi, M Becker, J Bredemann, J Kristin, T Klenzner, J Schipper
PURPOSE: The aim of the study was to validate a minimally invasive, multi-port approach to the internal auditory canal at the lateral skull base on a cadaver specimen. METHODS: Fiducials and a custom baseplate were fixed on a cadaver skull, and a computed tomography image was acquired. Three trajectories from the mastoid surface to the internal auditory canal were computed with a custom planning tool. A self-developed positioning system with a drill guide was attached to the baseplate...
February 14, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28191601/the-maxillary-artery-and-its-variants-an-anatomical-study-with-neurosurgical-applications
#3
Jorge E Alvernia, Joaquin Hidalgo, Marc P Sindou, Chad Washington, Gustavo Luzardo, Eddie Perkins, Remi Nader, Patrick Mertens
BACKGROUND: The maxillary artery (MA) has gained attention in neurosurgery particularly in cerebral revascularization techniques, intracranial endonasal approaches and endovascular procedures. OBJECTIVES: To describe and illustrate the anatomy of the MA and its neurosurgical importance in a detailed manner. METHODS: Six cadaveric heads (12 MAs) were injected with latex. The arteries and surrounding structures were dissected and studied using microsurgical techniques...
February 13, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28185320/orientation-of-the-lateral-semicircular-canal-in-xenarthra-and-its-links-with-head-posture-and-phylogeny
#4
Florence Coutier, Lionel Hautier, Raphaël Cornette, Eli Amson, Guillaume Billet
The orientation of the semicircular canals of the inner ear in the skull of vertebrates is one of the determinants of the capacity of this system to detect a given rotational movement of the head. Past functional studies on the spatial orientation of the semicircular canals essentially focused on the lateral semicircular canal (LSC), which is supposedly held close to horizontal during rest and/or alert behaviors. However, they generally investigated this feature in only a few and distantly related taxa. Based on 3D-models reconstructed from µCT-scans of skulls, we examined the diversity of orientations of the LSC within one of the four major clades of placental mammals, that is, the superorder Xenarthra, with a data set that includes almost all extant genera and two extinct taxa...
February 10, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28183292/case-report-rapid-and-durable-response-to-pdgfr-targeted-therapy-in-a-child-with-refractory-multiple-infantile-myofibromatosis-and-a-heterozygous-germline-mutation-of-the-pdgfrb-gene
#5
Peter Mudry, Ondrej Slaby, Jakub Neradil, Jana Soukalova, Kristyna Melicharkova, Ondrej Rohleder, Marta Jezova, Anna Seehofnerova, Elleni Michu, Renata Veselska, Jaroslav Sterba
BACKGROUND: Infantile myofibromatosis belongs to a family of soft tissue tumors. The majority of these tumors have benign behavior but resistant and malignant courses are known, namely in tumors with visceral involvement. The standard of care is surgical resection. Observations suggest that low dose chemotherapy is beneficial. The treatment of resistant or relapsed patients with multifocal disease remains challenging. Patients that harbor an actionable mutation in the kinase domain are potential subjects for targeted tyrosine kinase inhibitor therapy...
February 10, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28176372/development-of-the-skull-and-pectoral-girdle-in-siberian-sturgeon-acipenser-baerii-and-russian-sturgeon-acipenser-gueldenstaedtii-acipenseriformes-acipenseridae
#6
Peter Warth, Eric J Hilton, Benjamin Naumann, Lennart Olsson, Peter Konstantinidis
The head is considered the major novelty of the vertebrates and directly linked to their evolutionary success. Its form and development as well as its function, for example in feeding, is of major interest for evolutionary biologists. In this study, we describe the skeletal development of the cranium and pectoral girdle in Siberian (Acipenser baerii) and Russian sturgeon (A. gueldenstaedtii), two species that are commonly farmed in aquaculture and increasingly important in developmental studies. This study comprises the development of the neuro-, viscero- and dermatocranium and the dermal and chondral components of the pectoral girdle, from first condensation of chondrocytes in prehatchlings to the early juvenile stage and reveals a clear pattern in formation...
February 7, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28175991/spontaneous-cerebrospinal-fluid-leaks-in-the-anterior-skull-base-secondary-to-idiopathic-intracranial-hypertension
#7
Gabriel Martínez-Capoccioni, Ramón Serramito-García, Maria Martín-Bailón, Alfredo García-Allut, Carlos Martín-Martín
Spontaneous cerebrospinal fluid (CSF) leaks represent a clinical entity in which CSF rhinorrhea occurs in the absence of any inciting event. Spontaneous CSF leaks are associated with elevated intracranial pressure (ICP) or have underlying idiopathic intracranial hypertension (IIH). We report a cohort of patients who have undergone nasal endoscopic repair for spontaneous CSF leaks. We review our perioperative complications and the effectiveness of the nasal endoscopic approach to repair spontaneous CSF leaks...
February 7, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28168104/an-early-geikiid-dicynodont-from-the-tropidostoma-assemblage-zone-late-permian-of-south-africa
#8
Christian F Kammerer, Roger M H Smith
Based on specimens previously identified as Tropidostoma, a new taxon of dicynodont (Bulbasaurus phylloxyron gen. et sp. nov.) from the Karoo Basin of South Africa is described. Bulbasaurus is a medium-sized dicynodont (maximum dorsal skull length 16.0 cm) restricted to the Tropidostoma Assemblage Zone (early Lopingian) of the Beaufort Group. Bulbasaurus can be distinguished from Tropidostoma by an array of characters including the presence of a tall, sharp premaxillary ridge, large, rugose, nearly-confluent nasal bosses, a nasofrontal ridge, massive tusks, robust pterygoids, prominently twisted subtemporal bar, and absence of a distinct postfrontal...
2017: PeerJ
https://www.readbyqxmd.com/read/28167016/lateral-skull-base-surgery-in-a-pediatric-population-a-25-year-experience-in-a-referral-skull-base-center
#9
Golda Grinblat, Sampath Chandra Prasad, Andrea Fulcheri, Melissa Laus, Alessandra Russo, Mario Sanna
OBJECTIVE: To analyze the pathology and surgical outcomes of lateral skull base (LSB) procedures in a pediatric population. STUDY DESIGN: Retrospective case review in a referral skull base center. METHODS: Charts of pediatric patients who underwent defined LSB procedures from 1983 to 2015 for various pathologies were evaluated at our center. A systematic review of literature was performed and our results were compared with the literature. RESULTS: 63 patients presented with 65 diseased ears...
March 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28162256/pain-during-awake-craniotomy-for-brain-tumor-resection-incidence-causes-consequences-and-management
#10
D Fontaine, F Almairac
INTRODUCTION: Awake craniotomy for brain tumor resection is usually well-tolerated and most of the patients are satisfied. However, in studies reporting the patients' postoperative perception of the awake craniotomy procedure, about half of them have experienced some degree of intraoperative pain. Pain was mild (intensity between 1 and 2 on the visual analogical score) short lasting in most cases, and did not challenge the procedure. Pain was reported as moderate in about 25% and exceptionally severe...
February 2, 2017: Neuro-Chirurgie
https://www.readbyqxmd.com/read/28162241/transfacial-and-craniofacial-approaches-for-resection-of-sinonasal-and-ventral-skull-base-malignancies
#11
REVIEW
Elizabeth L Perkins, Bryan M Brandon, Satyan B Sreenath, Dipan D Desai, Brian D Thorp, Charles S Ebert, Adam M Zanation
Malignancies of the paranasal sinuses and ventral skull base present unique challenges to physicians. A transfacial or craniofacial approach allows for wide, possibly en bloc resection and is ideal for tumors that involve surrounding soft tissue, the palate, the orbit, anterolateral frontal sinus, and lateral dura. Transfacial approaches include a lateral rhinotomy often combined with a medial, subtotal, or total maxillectomy. Reconstruction is most commonly performed with a pericranial flap to separate the intranasal and intracranial compartments...
February 2, 2017: Otolaryngologic Clinics of North America
https://www.readbyqxmd.com/read/28155645/classification-of-suncus-murinus-species-complex-soricidae-crocidurinae-in-peninsular-malaysia-using-image-analysis-and-machine-learning-approaches
#12
Arpah Abu, Lee Kien Leow, Rosli Ramli, Hasmahzaiti Omar
BACKGROUND: Taxonomists frequently identify specimen from various populations based on the morphological characteristics and molecular data. This study looks into another invasive process in identification of house shrew (Suncus murinus) using image analysis and machine learning approaches. Thus, an automated identification system is developed to assist and simplify this task. In this study, seven descriptors namely area, convex area, major axis length, minor axis length, perimeter, equivalent diameter and extent which are based on the shape are used as features to represent digital image of skull that consists of dorsal, lateral and jaw views for each specimen...
December 22, 2016: BMC Bioinformatics
https://www.readbyqxmd.com/read/28151456/comparison-of-two-approaches-to-lateral-osteotomy-in-saudi-patients
#13
Ahmad A Mirza, Osama A Marglani, Mian U Farooq, Talal A Al-Khatib, Waed S Jameel, Noran A Sultan, Mohammed S Aly
BACKGROUND: Nasal deformity is an abnormality in the appearance of the nose due to either congenital defect or trauma. In traumatic cases, patients often present with combined functional and cosmetic complaints. Therefore, otolaryngologists take into account both breathing and aesthetic nasal issues. OBJECTIVES: To evaluate the changes in the nasal dorsum and base; compare breathing and aesthetic satisfaction scores between two approaches to lateral nasal osteotomy: low-to-low and low-to-high...
January 2017: Annals of Saudi Medicine
https://www.readbyqxmd.com/read/28145925/anatomical-study-of-the-infraorbital-nerve-and-surrounding-structures-for-the-surgery-of-orbital-floor-fractures
#14
YongSeok Nam, Sujin Bahk, SuRak Eo
The infraorbital nerve (ION) can easily be damaged by orbital trauma and periorbital surgical manipulations, due to its abutment to the orbital floor. Anatomic variability of the ION and surrounding structures has infrequently been documented. The aim of this study is to give precise anatomical knowledge about the ION with surrounding structures, to avoid iatrogenic injury of the ION during periorbital procedures.Forty orbits of 40 skull subjects (20 males and 20 females) were studied to analyze structures around the ION...
January 31, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28128694/the-rectus-capitis-lateralis-and-the-condylar-triangle-important-landmarks-in-posterior-and-lateral-approaches-to-the-jugular-foramen
#15
Michael A Cohen, Alexander I Evins, Gennaro Lapadula, Leopold Arko, Philip E Stieg, Antonio Bernardo
OBJECTIVE The rectus capitis lateralis (RCL) is a small posterior cervical muscle that originates from the transverse process of C-1 and inserts onto the jugular process of the occipital bone. The authors describe the RCL and its anatomical relationships, and discuss its utility as a surgical landmark for safe exposure of the jugular foramen in extended or combined skull base approaches. In addition, the condylar triangle is defined as a landmark for localizing the vertebral artery (VA) and occipital condyle...
January 27, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28121968/outcomes-of-the-suture-pull-through-technique-for-repair-of-lateral-skull-base-csf-fistula-and-encephaloceles
#16
Brendan P O'Connell, Jacob B Hunter, Alex D Sweeney, Reid C Thompson, Lola B Chambless, George B Wanna, Alejandro Rivas
OBJECTIVE: Describe the safety profile and surgical outcomes of a combined transmastoid-middle cranial fossa suture "pull-through" technique for repair of lateral skull base defects. STUDY DESIGN: Retrospective. SETTING: Tertiary care hospital. PATIENTS: Patients undergoing surgery for cerebrospinal fluid (CSF) fistula and/or encephalocele. INTERVENTION: Combined transmastoid and middle fossa approach using suture pull-through technique...
March 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28118191/a-rare-concha-variation-coronal-cleft
#17
Serap Yucel, Hediye Pinar Gunbey, Emre Gunbey, Asli Sayit Tanrivermis, Kerim Aslan
Nasal turbinates are embryologically derived from a series of outgrowths from the foetal lateral nasal wall. These outgrowths form a series of ridges, referred to as "ethmoturbinals" and have several vital functions. Several different turbinate variations have been reported so far. The authors presented 3 patients of coronal clefted concha who were diagnosed with magnetic resonance imaging. Computed tomography scans and nasal endoscopic examinations are also performed subsequently. These patients are the first coronal clefted concha cases in the literature and also the first radiological study defining concha cleft...
January 23, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28111283/morphological-impact-on-patients-of-maxillomandibular-advancement-surgery-for-the-treatment-of-obstructive-sleep-apnea-hypopnea-syndrome
#18
Thibaut Beranger, Emilie Garreau, Joël Ferri, Gwenael Raoul
INTRODUCTION: The aim of this study is to evaluate the experience of patients who have benefited from maxillomandibular advancement surgery for the treatment of obstructive sleep apnea-hypopnea syndrome (OSAHS), and also the morphological modifications measured on pre- and postoperative lateral headfilms. PATIENTS AND METHODS: Twenty-three patients aged 24 to 64 (M=46.8) who had undergone bimaxillary advancement osteotomy for the treatment of OSAHS filled in a questionnaire concerning their overall satisfaction following surgery, the modification of their facial appearance as perceived by themselves and their family and friends, the change in their smile, and the slimmer and more youthful appearance of their face...
January 19, 2017: International Orthodontics
https://www.readbyqxmd.com/read/28097430/how-i-do-it-the-mononostril-endonasal-transethmoidal-paraseptal-approach
#19
Robert Reisch, Hans Rudolf Briner, Anne-Katrin Hickmann
BACKGROUND: The use of endoscopes in transnasal surgery offers increased visualization. To minimize rhinological morbidity without restriction in manipulation, we introduced the mononostril transethmoidal-paraseptal approach. METHODS: The aim of the transethmoidal-paraseptal approach is to create sufficient space within the nasal cavity, without removal of nasal turbinates and septum. Therefore, as a first step, a partial ethmoidectomy is performed. The middle and superior turbinates are then lateralized into the ethmoidal space, allowing a wide sphenoidotomy with exposure of the central skull base...
March 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28094160/a-case-of-generalized-lymphatic-anomaly-causing-skull-base-leakage-and-bacterial-meningitis
#20
Kenichi Suga, Aya Goji, Miki Inoue, Masami Kawahito, Masako Taki, Kazuhiro Mori
Generalized lymphatic anomaly is a multifocal lymphatic malformation that affects the skin, thoracic viscera, and bones. A 3year-old Japanese boy presented with right facial palsy due to cystic tumors in the ipsilateral petrous bone. Pericardial effusion had been found incidentally and generalized lymphatic anomaly had been diagnosed by pericardial biopsy. Petrous bone tumor had been followed up without surgery. At the age of seven he presented with fever and disturbance of consciousness, and bacterial meningitis due to Streptococcus pneumoniae was diagnosed...
January 13, 2017: Brain & Development
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