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https://www.readbyqxmd.com/read/28203571/evolutionary-history-of-multiple-dural-fistula
#1
Braulio Martinez-Burbano, Edgar Patricio Correa Diaz, Carolina Jácome Sánchez
Intracranial dural arteriovenous fistulas (DAVFs) are abnormal communications between arteries and veins or dural venous sinuses, which sit between the sheets of the dura. They represent 10% to 15% of intracranial vascular malformations. Clinical manifestations and prognosis depend on the pattern of venous drainage and location. The clinical presentation of DAVF may be mistaken for vascular or nonvascular brain pathologies. For that reason, within the differential diagnosis come a wide range of conditions, such as secondary headaches, encephalopathies, dementias including those with rapid progression, neurodegenerative diseases, inflammatory processes, or tumors typically at the orbital level or in the cavernous sinus...
October 2016: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28203025/-trigemino-cardiac-reflex-in-skull-base-surgery
#2
H Z Duan, Y Zhang, L Li, J Y Zhang, Z Q Yi, S D Bao
OBJECTIVE: To explore the mechanism, clinical features, and prognosis of Trigemino-cardiac reflex (TCR) during skull base operations. METHODS: A retrospective analysis was performed on 291 patients with skull base disease from Jan. 2009 to Oct. 2015 in Peking University First Hospital. By reviewing the patients' operative data and anaesthetic electrical record, and we picked out all the patients who suffered from TCR during the operation and analyzed their surgical procedures, clinical features, influence factors, and prognosis...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28197813/t2-weighted-mri-signal-intensity-as-a-predictor-of-hormonal-and-tumoral-responses-to-somatostatin-receptor-ligands-in-acromegaly-a-perspective
#3
REVIEW
Iulia Potorac, Albert Beckers, Jean-François Bonneville
T2-weighted MRI signal intensity of GH-secreting pituitary adenomas is gaining recognition as a marker of disease characteristics and may be a predictor of response to treatment of acromegaly. Adenomas that are T2-hypointense are more common, are smaller and are less likely to invade the cavernous sinus compared to the T2-iso and hyperintense tumors. T2-hypointense tumors are also accompanied by higher IGF1 values at baseline. When presurgical somatostatin receptor ligand (SRL) therapy is administered, T2-hypointense adenomas have better hormonal responses and have greater tumor shrinkage...
February 14, 2017: Pituitary
https://www.readbyqxmd.com/read/28195506/the-use-of-diffusion-weighted-imaging-to-evaluate-pathology-outside-the-brain-parenchyma-in-neuroimaging-studies
#4
Philip Benjamin, Faraan Khan, Andrew D MacKinnon
Diffusion weighted imaging (DWI) has transformed the radiological assessment of a variety of cerebral pathologies, in particular acute stroke. In neuroimaging studies, DWI can also be used to evaluate pathology outside the brain parenchyma, although it is sometimes underutilised for this purpose. In this pictorial review, the principles of diffusion-weighted imaging are outlined and thirteen cases of abnormal diffusion outside the brain parenchyma are illustrated in order to show DWI as a useful sequence for the evaluation of the following recommended review areas: the dural venous sinuses, internal carotid arteries, meninges, ventricles, cavernous sinus and orbits, skull base, and lymph nodes...
February 14, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28194321/extranodal-natural-killer-t-cell-lymphoma-presenting-as-orbital-cellulitis
#5
Hanis Zuhaimy, Hayati Abdul Aziz, Suresh Vasudevan, Siah Hui Hui
Objective: To report an aggressive case of extranodal natural killer/T-cell lymphoma (NKTCL) of the ethmoid sinus presenting as orbital cellulitis Method: Case report Results: A 56-year-old male presented with right eye redness, reduced vision, and periorbital swelling for 5 weeks duration associated with a two-month history of blocked nose. The visual acuity of the right eye was 6/18. The eye was proptosed with periorbital oedema and conjunctival chemosis. The pupil was mid-dilated but there was no relative afferent pupillary defect...
2017: GMS Ophthalmology Cases
https://www.readbyqxmd.com/read/28191380/transorbital-approach-for-endovascular-occlusion-of-carotid-cavernous-fistulas-technical-note-and-review-of-the-literature
#6
Ching-Jen Chen, Panagiotis Mastorakos, James P Caruso, Dale Ding, Paul J Schmitt, Thomas J Buell, Daniel M Raper, Avery Evans, Steven A Newman, Mary E Jensen
Carotid-cavernous fistulas (CCFs) pose an anatomically and physiologically challenging problem for clinicians. The most common method of treatment for these lesions is transvenous endovascular embolization via the inferior petrosal sinus or the facial vein. When transvenous access is not possible, an alternate approach must be devised. We describe a case example with bilateral Barrow Type B CCFs, which were inaccessible using the traditional transvenous approach. Hence, a direct transorbital approach, performed under fluoroscopic guidance, was employed to successfully obliterate the CCF...
January 12, 2017: Curēus
https://www.readbyqxmd.com/read/28186582/neurosarcoidosis-leptomeninigeal-cavernous-sinus-pituitary-involvement
#7
Louise Bicart-Sée, Mélanie Roriz, Hugues Chabriat, Frédérique Buffon-Porcher, Emmanuel Cognat
No abstract text is available yet for this article.
February 10, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/28184950/orbital-cellulitis-with-apparent-thrombosis-of-the-left-cavernous-sinus-and-perioptical-abscess-formation
#8
B E Grüter, A Pangalu, K Landau, W Wichmann
No abstract text is available yet for this article.
February 9, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28180047/the-pedicled-buccal-fat-pad-anatomical-study-of-the-new-flap-for-skull-base-defect-reconstruction-after-endoscopic-endonasal-transpterygoid-surgery
#9
Denis A Golbin, Nikolay V Lasunin, Vasily A Cherekaev, Georgiy A Polev
Objectives To evaluate the efficacy and safety of using a buccal fat pad for endoscopic skull base defect reconstruction. Design Descriptive anatomical study with an illustrative case presentation. Setting Anatomical study was performed on 12 fresh human cadaver specimens with injected arteries (24 sides). Internal carotid artery was exposed in the coronal plane via the endoscopic transpterygoid approach. The pedicled buccal fat pad was used for reconstruction. Participants: 12 human cadaver head specimens; one patient operated using the proposed technique...
February 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28163507/which-classification-of-cavernous-sinus-syndrome-is-better-ishikawa-or-jefferson-a-prospective-study-of-73-patients
#10
Sanat Bhatkar, Manoj Kumar Goyal, Aastha Takkar, Manish Modi, Kanchan K Mukherjee, Paramjeet Singh, Bishan Das Radotra, Ramandeep Singh, Vivek Lal
INTRODUCTION: Ishikawa and Jefferson are the two most commonly used systems used for the classification of cavernous sinus syndrome (CSS). However, relative utilities of these two classification systems have not been evaluated in detail in developing countries. In this study, we compared relative utilities of these two classification schemes in the evaluation of CSS. OBJECTIVE: To compare the utility of Jefferson and Ishikawa classifications in the evaluation of CSS...
December 2016: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/28153757/sinonasal-hemangioma-diagnosis-treatment-and-follow-up-of-37-patients-at-a-single-center
#11
Jong Seung Kim, Sam Hyun Kwon
PURPOSE: Hemangioma is a common benign vascular lesion of the head and neck region. It rarely involves the mucous membranes of the nasal cavity and paranasal sinuses. It should be added to the differential diagnosis of nasal cavity masses when the presenting symptoms are epistaxis or nasal obstruction. MATERIALS AND METHODS: A retrospective chart review was conducted of a histologic diagnosis of lobular capillary hemangioma or cavernous hemangioma of the sinonasal mucous membranes treated at the Chonbuk National University Hospital from January 1995 through December 2015...
January 5, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28149097/magnetic-resonance-imaging-findings-of-isolated-abducent-nerve-palsy-induced-by-vascular-compression-of-vertebrobasilar-dolichoectasia
#12
Hidetaka Arishima, Ken-Ichiro Kikuta
If the origin of isolated abducent nerve palsy cannot be found on neuroradiological examinations, diabetes mellitus is known as a probable cause; however, some cases show no potential causes of isolated abducent nerve palsy. Here, we report a 74-year-old male who suffered from diplopia due to isolated left abducent nerve palsy. Magnetic resonance angiography and fast imaging employing steady-state acquisition imaging clearly showed a dolichoectasic vertebrobasilar artery compressing the left abducent nerve upward and outward...
January 2017: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/28148337/bilateral-cavernous-sinus-thrombosis-in-lemierre-s-syndrome
#13
Adrian Budhram, Basavaraj Shettar, Donald H Lee, Michael Silverman, Kaveri Gupta
No abstract text is available yet for this article.
February 2, 2017: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/28131870/waiting-to-deliver-a-final-diagnosis
#14
Ali Mokhtarzadeh, Amanda Maltry, Collin McClelland
We report a patient with left eye positional transient visual obscurations, diplopia, a left afferent pupillary defect, and optic disc edema--all occurring during pregnancy. Non-contrast MRI revealed an orbital mass encasing the optic nerve and extending through the superior orbital fissure into the cavernous sinus. An MRI with gadolinium following parturition and strongly positive somatostatin receptor scintigraphy suggested the diagnosis of meningioma. Biopsy confirmed the diagnosis, and she was treated with CyberKnife stereotactic radiosurgery...
January 25, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28127130/endovascular-therapy-using-flow-diversion-for-giant-internal-carotid-artery-pseudoaneurysm-arising-in-the-setting-of-an-invasive-pituitary-macroadenoma
#15
Amin F Saad, Almas Syed, Keyan B Marashi, Brian D O'Rourke, Joseph H Hise, Michael J Opatowsky, Kennith F Layton
This report illustrates the unusual occurrence of a pseudoaneurysm arising in the setting of a skull base mass and describes the first reported use of endovascular flow diversion therapy in such a setting. A 63-year-old man with occasional headaches during the preceding month presented with the acute onset of severe left retroorbital headache and oculomotor nerve palsy. Computed tomography (CT) and CT angiogram revealed a destructive skull base mass with an associated giant probable pseudoaneurysm of the cavernous segment of the left internal carotid artery...
January 2017: Proceedings of the Baylor University Medical Center
https://www.readbyqxmd.com/read/28120060/efficacy-of-microsurgical-sublabial-approach-msa-versus-endoscopic-endonasal-approach-eea-for-the-treatment-of-pituitary-adenomas-based-on-radiological-and-hormonal-outcome
#16
Pier Paolo Mattogno, Annunziato Mangiola, Giorgio Lofrese, Vera Vigo, Carmelo Anile
BACKGROUND: The purpose of this study was to compare the surgical efficacy of the microsurgical sublabial approach (MSA) versus the endoscopic endonasal approach (EEA) for the treatment of pituitary adenomas, based on short-term (12 months) radiological and endocrinological follow-up. METHODS: One hundred and fourteen patients affected by pituitary adenoma were enrolled at our Unit between January 2007 and February 2012; 72 were treated with MSA, and 42 with EEA...
2017: Acta Neurochirurgica. Supplement
https://www.readbyqxmd.com/read/28111701/thrombosis-of-venous-outflows-of-the-cavernous-sinus-possible-aetiology-of-the-cortical-venous-reflux-in-case-of-indirect-carotid-cavernous-fistulas
#17
Thomas Robert, Philippe Sylvestre, Raphaël Blanc, Daniele Botta, Gabriele Ciccio, Stanislas Smajda, Hocine Redjem, Michel Piotin
BACKGROUND: The presence of a cortical venous reflux (CVR) in a carotid-cavernous fistula (CCF) is well described and is considered to be a criterion for urgent treatment. This reflux is often associated with direct/traumatic CCF and the high-flow of the fistula alone explains the reflux. For indirect CCF, the pathophysiology of a CVR is unclear. METHODS: All patients treated endovascularly for an indirect CCF with a cortical venous reflux between 2003 and 2015 were included...
January 22, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28098212/different-volumetric-measurement-methods-for-pituitary-adenomas-and-their-crucial-clinical-significance
#18
Chi-Cheng Chuang, Shinn-Yn Lin, Ping-Ching Pai, Jiun-Lin Yan, Cheng-Hong Toh, Shih-Tseng Lee, Kuo-Chen Wei, Zhuo-Hao Liu, Chung-Ming Chen, Yu-Chi Wang, Cheng-Chi Lee
Confirming the status of residual tumors is crucial. In stationary or spontaneous regression cases, early treatments are inappropriate. The long-used geometric calculation formula is 1/2 (length × width × height). However, it yields only rough estimates and is particularly unreliable for irregularly shaped masses. In our study, we attempted to propose a more accurate method. Between 2004 and 2014, 94 patients with pituitary tumors were enrolled in this retrospective study. All patients underwent transsphenoidal surgery and received magnetic resonance imaging (MRI)...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28093349/combining-internal-carotid-ligation-with-low-flow-bypass-for-treating-large-giant-cavernous-sinus-segment-aneurysms-a-report-of-four-cases
#19
Chuan Chen, Bo Hou, Wen-Shen Li, Ying Guo
OBJECTIVE: We summarize the treatment effectiveness and experience of four cases that underwent internal carotid ligation combined with low-flow bypass as a treatment for large-giant cavernous sinus segment aneurysms (CS ICA aneurysms). METHOD: Surgery-suitable patients with large-giant CS ICA aneurysms received internal carotid ligation combined with low-flow superficial temporal artery - middle cerebral artery bypass surgery. All the patients were followed up for aneurysm prognosis, anastomosis patency, and occurrences of low flow-related ischemic complications...
January 13, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28061497/cerebellar-hemorrhage-due-to-a-direct-carotid-cavernous-fistula-after-surgery-for-maxillary-cancer
#20
Yoshinobu Kamio, Hisaya Hiramatsu, Mika Kamiya, Shuhei Yamashita, Hiroki Namba
Infratentorial cerebral hemorrhage due to a direct carotid-cavernous fistula (CCF) is very rare. To our knowledge, only four such cases have been reported. Cerebellar hemorrhage due to a direct CCF has not been reported. We describe a 63-year-old female who presented with reduced consciousness 3 days after undergoing a maxillectomy for maxillary cancer. Computed tomography showed a cerebellar hemorrhage. Magnetic resonance angiography showed a left-sided direct CCF draining into the left petrosal and cerebellar veins through the left superior petrosal sinus (SPS)...
January 1, 2017: Journal of Korean Neurosurgical Society
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