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https://www.readbyqxmd.com/read/29775148/the-pterygoclival-ligament-a-novel-landmark-for-localization-of-the-internal-carotid-artery-during-the-endoscopic-endonasal-approach
#1
Ali Tayebi Meybodi, Andrew S Little, Vera Vigo, Arnau Benet, Sofia Kakaizada, Michael T Lawton
OBJECTIVE The transpterygoid extension of the endoscopic endonasal approach provides exposure of the petrous apex, Meckel's cave, paraclival area, and the infratemporal fossa. Safe and efficient localization of the lacerum segment of the internal carotid artery (ICA) is a crucial part of such exposure. The aim of this study is to introduce a novel landmark for localization of the lacerum ICA. METHODS Ten cadaveric heads were prepared for transnasal endoscopic dissection. The floor of the sphenoid sinus was drilled to expose an extension of the pharyngobasilar fascia between the sphenoid floor and the pterygoid process (the pterygoclival ligament)...
May 18, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29775030/-endoscopic-transnasal-approach-for-surgical-treatment-of-skull-base-clival-area-chordomas-report-of-2-cases
#2
J Ma, P Fang, D Wang, Y J Liu
The case 1 performanced submandibular trauma because of the faint Suddenly. There were no obvious abnormality in physical examination. CT result showed that the tumour located in the lower clivus, and the atlas was infringed. MRI imaging showed the tumour located in the both sides of the internal carotid artery, infringed clivus and atlas front, forwarded into the nasal cavity and oral cavity. The case 2 performanced the left nose stuffy and increased gradually, nasopharyngeal mirror showed the left nasal cavity filled with new life...
February 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29775009/-internal-carotid-artery-injury-during-endoscopic-endonasal-surgery-3-cases-report
#3
Z P Zhang, J P Yang, Y Zhao, J Z Cheng, K B Chen, S Li, Z G Wang
Three cases of internal carotid artery (ICA) injury during endoscopic endonasal surgery were analyzed, including 1 case of recurrent malignancy of sphenoid sinus, 1 case of intraorbital meningioma and 1 case of optic neuropathy. Salvage sphenoid sinus packing with gauze strip was managed in all the three cases. One patient operated a permanent closure of the carotid system intraoperatively and died after surgery. Among 2 survival cases, one patient accepted the endovascular embolization subsequently; the other patient was cured by intravaseular stent graft implantation without craniocerebral or ocular complicatitms...
June 5, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29772400/neuro-endoscope-for-skull-base-tumors
#4
REVIEW
Hua Gao, Chunhui Liu, Yazhuo Zhang
The endoscope has traditionally been used in neurosurgery to access a lesion within a natural body cavity. The challenge has been to access and resect deep-seated intraparenchymal lesions using a minimally invasive endoscopic technique. Endoscopic endonasal trans-sphenoidal surgery has gained increasing acceptance by otolaryngologists and neurosurgeons. Surgical procedures of the skull base include exposure, resection, and base reconstruction. These approaches start at the sphenoid sinus, which provides a reference point to important vascular and neural structures...
May 14, 2018: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29771086/-design-of-cross-sectional-anatomical-model-focused-on-drainage-pathways-of-paranasal-sinuses
#5
Y Zha, W Lv, Y L Gao, Z Z Zhu, Z Q Gao
Objective: To design and produce cross-sectional anatomical models of paranasal sinuses for the purpose of demonstrating drainage pathways of each nasal sinus for the young doctors. Method: We reconstructed the three-dimensional model of sinuses area based on CT scan data, and divided it into 5 thick cross-sectional anatomy models by 4 coronal plane,which cross middle points of agger nasi cell, ethmoid bulla, posterior ethmoid sinuses and sphenoid sinus respectively. Then a 3D printerwas used to make anatomical cross-sectional anatomical models...
May 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29770286/resection-of-an-optic-canal-meningioma-through-a-contralateral-subfrontal-approach-with-endoscopic-assistance-a-2d-operative-video
#6
Moujahed Labidi, Kentaro Watanabe, Anne-Laure Bernat, Shunya Hanakita, Sébastien Froelich
Objective  To review the use of the contralateral subfrontal approach for the resection of an optic canal meningioma. Design  Operative video. Results  A meningioma, located in the inferomedial side of the optic canal ( Fig. 1 ), was found to cause significant visual deterioration. The subfrontal route was preferred to expose the tumor without mobilization of the optic nerve. Drilling of the anterior limb of the chiasmatic sulcus (limbus sphenoidale) provided adequate exposure of the medial aspect of the optic canal...
February 2018: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29765952/malignant-orbital-meningioma-originating-from-the-frontal-lobe
#7
Giancarlo A Garcia, Andrew E Choy, Anton N Hasso, Don S Minckler
Purpose of the Study: Orbital meningiomas are typically benign tumors, most commonly originating from the dura of the sphenoid wing or the optic nerve sheath. Procedures: We describe an unusual case of a malignant meningioma originating from the frontal lobe that ultimately produced orbital and distant metastases. Results and Conclusions: Orbital invasion by the meningioma was preceded by multiple incomplete resections, which may have facilitated access to the orbit...
April 2018: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/29762326/temporal-progression-of-craniofacial-dysmorphology-in-unilateral-coronal-synostosis-a-mechanistic-hypothesis
#8
Kirun Baweja, Alexander H Sun, Rajendra Sawh-Martinez, John A Persing
AIM: This study chronicles skull base and face development in nonsyndromic unilateral coronal synostosis (UCS) during infancy, to characterize the mechanistic progression of facial dysmorphology. METHODS: Computed tomography scans from 51 subjects were reviewed (26 UCS, 25 controls) and data were reconstructed. Patients were stratified into 5 age groups. A series of measurements were taken from the reconstructions. RESULTS: All patients had a unilaterally fused coronal suture at the time of analysis...
May 14, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29755916/a-case-of-sinonasal-undifferentiated-carcinoma-with-brain-metastases
#9
Julianna Sienna, Nhu-Tram Nguyen, Julie Arsenault, Ian Hodson, Brandon Meyers
Sinonasal undifferentiated carcinoma (SNUC) is a rare aggressive neoplasm arising in the nasal cavity and paranasal sinuses. We report a unique case of an 80-year-old man who presented with a locally advanced SNUC involving the ethmoid, sphenoid, and maxillary sinuses and bilateral lymph nodes, clinical T4N2M0. Given his age and the initial extent of his primary tumour, he was treated with neoadjuvant chemotherapy followed by chemoradiation with a split course of 50 Gray (Gy) in 40 fractions delivered twice a day...
March 13, 2018: Curēus
https://www.readbyqxmd.com/read/29755895/role-of-thermography-in-the-diagnosis-of-chronic-sinusitis
#10
Raja Kalaiarasi, Chellappa Vijayakumar, Ramalingam Archana, Ramakrishnan Venkataramanan, Ranganathan Chidambaram, Sadhanandham Shrinuvasan, Ravi Prabhu
Introduction Thermography is a form of radiography that images the skin surface temperature. Thermograms are pictorial representations of thermal maps of the entire body's outer surface. Thermography was applied as an attempt to evaluate its usefulness in the diagnosis of chronic sinusitis (CS). Hence, this study was done to determine the diagnostic value of thermography for patients suffering from CS. Methodology Patients attending the Department of Otorhinolaryngology and Head and Neck Surgery over a two years' duration with symptoms suggestive of CS were included in this diagnostic evaluation study...
March 10, 2018: Curēus
https://www.readbyqxmd.com/read/29754637/new-molecular-targets-for-treatment-of-cushing-s-disease
#11
REVIEW
Elizabeth Foulkes, John Newell-Price
Despite the best outcomes from trans-sphenoidal surgery, approximately one-third of patients with Cushing's disease will need medical therapy. Current treatments have drawbacks and there is a clear clinical need for new therapies. Recent understanding of molecular pathways leading to excess ACTH secretion has identified key components that may be targeted with the aim to provide novel effective treatment for this devastating disease. These include testicular orphan nuclear receptor 4, heat shock protein 90, and epidermal growth factor receptor...
June 2018: Endocrinology and Metabolism Clinics of North America
https://www.readbyqxmd.com/read/29742711/pituitary-apoplexy-following-lumbar-fusion-surgery-in-prone-position-a-case-report
#12
Chunghee Joo, Geol Ha, Yeon Jang
RATIONALE: Pituitary apoplexy (PA) is a syndrome caused by acute hemorrhage or infarction of the pituitary gland, generally within a pituitary adenoma. PA following spinal surgery is a very rare complication and may be difficult to diagnose. However, early diagnosis of PA is essential for the timely treatment of pan-hypopituitarism and prevention of severe neurologic complications. PATIENT CONCERNS: A 73-year-old man had a posterior lumbar fusion surgery over a period of 8 hours on prone position...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29730382/medical-imagery-isolated-abducens-palsy-due-to-acute-sphenoid-sinusitis
#13
Oscar H Del Brutto, Rafael Caputi
No abstract text is available yet for this article.
May 3, 2018: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/29730106/imaging-evaluation-of-the-location-and-fenestration-of-sellar-floor-during-endonasal-transsphenoidal-surgery-in-patients-with-pituitary-adenomas
#14
Shousen Wang, Yong Qin, Deyong Xiao, Zhifeng Wu, Liangfeng Wei
To evaluate the clinical value of three-dimensional (3D) CT reconstruction of the sphenoidal sinus separation in localizing sellar floor during endonasal transsphenoidal surgery, and determine the size and location of sellar floor fenestration. After exclusion,51 patients were eligible for study inclusion. A pre-operative CT scan of the paranasal sinus and CT scan and MRI of the pituitary gland were obtained. Sphenoidal sinus separation was reconstructed using Mimics 15.0 software and the quantity, shape, and orientation were observed and compared with intra-operative data, the purpose of which was to guide the localization of sellar floor...
May 3, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29729008/analysis-of-the-far-medial-transoral-endoscopic-approach-to-the-infratemporal-fossa
#15
Hafiz S Patwa, Juan C Yanez-Siller, Matias Gomez Galarce, Bradley A Otto, Daniel M Prevedello, Ricardo L Carrau
OBJECTIVES/HYPOTHESIS: To demonstrate anatomic relationships of the far-medial transoral endoscopic assisted approach (FMT-EAA) to the infratemporal fossa (ITF) and define the corridor dimensions, surgical freedom, and limitations associated with this approach. STUDY DESIGN: Cadaveric study. METHODS: Twenty ITFs (10 specimens) were dissected with the assistance of 0 °, 30 °, and 45 ° rod-lens endoscopes. Image guidance was used to confirm and measure the corridors' structural boundaries and document the anatomical relationships encountered in this approach...
May 4, 2018: Laryngoscope
https://www.readbyqxmd.com/read/29726777/surgical-outcomes-after-reoperation-for-recurrent-skull-base-meningiomas
#16
Stephen T Magill, David S Lee, Adam J Yen, Calixto-Hope G Lucas, David R Raleigh, Manish K Aghi, Philip V Theodosopoulos, Michael W McDermott
OBJECTIVE Skull base meningiomas are surgically challenging tumors due to the intricate skull base anatomy and the proximity of cranial nerves and critical cerebral vasculature. Many studies have reported outcomes after primary resection of skull base meningiomas; however, little is known about outcomes after reoperation for recurrent skull base meningiomas. Since reoperation is one treatment option for patients with recurrent meningioma, the authors sought to define the risk profile for reoperation of skull base meningiomas...
May 4, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29724144/arrested-pneumatization-of-the-sphenoid-sinus-mimicking-skull-base-tumors-mri-prevalence-in-children-with-haematologic-diseases
#17
Taner Arpaci
OBJECTIVE: Arrested pneumatization of the sphenoid sinus (APSS) is a developmental anatomic variation but may be confused with serious diseases of the skull base. The purpose of this study was to investigate the prevalence of APSS in pediatric patients with haemotologic diseases like sickle cell anemia (SCA), thalassemia and leukemia. MATERIALS AND METHODS: One hundred and eight pediatric patients (43 girl, 65 boy; age range, 4-18 years; median age, 13 years) with haemotologic diseases who underwent at least one magnetic resonance imaging (MRI) of the head and neck between 2010-2017 in a single instution were included...
May 3, 2018: International Journal of Neuroscience
https://www.readbyqxmd.com/read/29721547/evaluation-of-the-pharyngeal-airway-using-computational-fluid-dynamics-in-patients-with-acromegaly
#18
Keika Mukaihara, Maiko Hasegawa-Moriyama, Tomonori Iwasaki, Youichi Yamasaki, Yuichi Kanmura
Objectives: Perioperative airway management may be particularly challenging in patients with acromegaly undergoing trans-sphenoidal pituitary surgery (TSS). Management for airway obstruction is required prior to pituitary surgery to minimize perioperative hypoxia. The purpose of this retrospective study was to evaluate airway obstruction by simulation of computational fluid dynamics (CFD) using computed tomography (CT) images in patients who had undergone TSS. Methods: CT images of the nasopharyngeal airways of patients with acromegaly (n = 5) or nonfunctional pituitary adenoma (n = 6) undergoing TSS from April 2012 to January 2017 were used to construct these airways in three dimensions...
April 2018: Laryngoscope Investigative Otolaryngology
https://www.readbyqxmd.com/read/29721348/atypical-epidural-hemangiopericytoma-presenting-with-visual-disturbance
#19
Satoshi Tsutsumi, Satoshi Adachi, Hisato Ishii, Yukimasa Yasumoto
Background: Hemangiopericytomas are a rare entity commonly presenting as subdural tumors. Case Description: A 57-year-old man presented with a progressive visual disturbance over a period of 3 weeks. Cranial computed tomography scans revealed an isodense mass at the tip of the left middle fossa, extending into the orbital apex, and accompanying bony erosions in the sphenoid ridge. On magnetic resonance imaging, the lesion appeared isointense both on T1- and T2-weighted sequences, and intensely enhanced on contrast examinations...
2018: Surgical Neurology International
https://www.readbyqxmd.com/read/29718332/endoscopic-endonasal-transmaxillary-transshpenoidal-approach-for-excision-of-a-superior-orbital-fissure-cavernous-sinus-meningioma-2-dimensional-operative-video
#20
Ehab El Refaee, Steffen Fleck, Marc Matthes, Henry W S Schroeder
We present a 43-old-male who suffered from a slowly progressive loss of vision in the left eye. Magnetic resonance (MR) imaging revealed a well-circumscribed contrast-enhancing lesion in the region of the anterior cavernous sinus and superior orbital fissure that extended into the optic canal. A schwannoma or meningioma was suspected. A transcranial surgery performed at another institution was not successful in removing the tumor and further deterioration of vision occurred. After resection of the left middle turbinate, the sphenoid and maxillary sinus were opened...
April 28, 2018: Operative Neurosurgery (Hagerstown, Md.)
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