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https://www.readbyqxmd.com/read/28341352/volumetric-analysis-of-the-maxillary-sphenoid-and-frontal-sinuses-a-comparative-computerized-tomography-based-study
#1
Oded Cohen, Meir Warman, Moran Fried, Hagit Shoffel-Havakuk, Meital Adi, Doron Halperin, Yonatan Lahav
OBJECTIVE: To study volume characteristics of the maxillary, sphenoid and frontal sinuses among healthy Caucasians adults, using computed tomography (CT) scans. METHODS: A retrospective, case series study in a single academic center, CT scans of 201 consecutive adult subjects, performed between January and September 2014, were reviewed for the volume and dimensions of the paranasal sinuses. Patients with documented sinus pathology or lack of pneumatization were excluded...
March 21, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28341329/body-mass-index-and-insulin-like-growth-factor-1-as-risk-factors-for-discordant-growth-hormone-and-insulin-like-growth-factor-1%C3%A2-levels-following-pituitary-surgery-in-acromegaly
#2
Shuo Zhang, Yilin Li, Xiaopeng Guo, Lu Gao, Wei Lian, Yong Yao, Ming Feng, Xinjie Bao, Renzhi Wang, Bing Xing
BACKGROUND: Growth hormone (GH)-secreting pituitary adenoma is a chronic disease characterized by excess levels of GH and insulin-like growth factor 1 (IGF-1). Based on our clinical experience and observations, we identified discordant GH and IGF-1 levels after surgery. The risk factors for this phenomenon are unclear, and individualized cure, control criteria, and management after surgery should be considered. PURPOSE: This study aims to investigate the factors affecting the discordant GH and IGF-1 levels after pituitary surgery in acromegalic patients...
March 21, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28332154/altered-cerebrospinal-fluid-dynamics-in-neurofibromatosis-type-l-severe-arachnoid-thickening-in-patients-with-neurofibromatosis-type-1-may-cause-abnormal-csf-dynamic
#3
Young Sill Kang, Eun-Kyung Park, Yong-Oock Kim, Ju-Seong Kim, Dong-Seok Kim, U W Thomale, Kyu-Won Shim
INTRODUCTION: The object of this study is to understand abnormal dynamic of cerebrospinal fluid (CSF) in patients with neurofibromatosis type 1 (NF1), which may cause temporal lobe herniation and bulging of temporal fossa. METHODS: Four patients, three females and one male, with NF1 were studied retrospectively. They presented with a similar craniofacial deformity, which consisted of pulsatile exophthalmos, an enlarged bony orbit, dysplasia of the sphenoid wing with the presence of a herniation of the temporal lobe into the orbit, and a bulging temporal fossa...
March 22, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28329564/polydactyly-in-neurofibromatosis-type-i-a-potential-clue-to-diagnosis
#4
Kate L Kimes, Marie J Han, Patrick J Brown
Neurofibromatosis type 1 is a genetic disorder characterized by variable phenotypic manifestations. The diagnostic criteria, 25 established in 1987, are broad to encompass these pleiotropic findings. Included are the specific osseous manifestations of 26 sphenoid dysplasia and dysplasia or thinning of the cortex of long bones. This review highlights recent evidence on the role of 27 neurofibromin in bone development and suggests consideration for additional diagnostic criteria.
November 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28327941/degree-of-vascular-encasement-in-sphenoid-wing-meningiomas-predicts-postoperative-ischemic-complications
#5
D Jay McCracken, Raymond A Higginbotham, Jason H Boulter, Yuan Liu, John A Wells, Sameer H Halani, Amit M Saindane, Nelson M Oyesiku, Daniel L Barrow, Jeffrey J Olson
BACKGROUND: Sphenoid wing meningiomas (SWMs) can encase arteries of the circle of Willis, increasing their susceptibility to intraoperative vascular injury and severe ischemic complications. OBJECTIVE: To demonstrate the effect of circumferential vascular encasement in SWM on postoperative ischemia. METHODS: A retrospective review of 75 patients surgically treated for SWM from 2009 to 2015 was undertaken to determine the degree of circumferential vascular encasement (0°-360°) as assessed by preoperative magnetic resonance imaging (MRI)...
January 28, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28321383/direct-endonasal-approach-with-partial-upper-posterior-septectomy-a-rescue-flap-technique-modification
#6
Arturo Sotomayor-González, Armando José Díaz-Martínez, Ramón Radillo-Gil, Everardo García-Estrada, Jesús Alberto Morales-Gómez, Isaac Jair Palacios-Ortiz, Samuel Pérez-Cárdenas, Mauricio Arteaga-Treviño, Ángel Martínez-Ponce De León
Objective Report a modification of the "rescue flap" technique using a direct endonasal approach with a partial superior septectomy for approaching pituitary tumors developed in our institution. Design Prospective study. Setting Hospital Universitario "Dr. José Eleuterio González," Universidad Autónoma de Nuevo León. Main Outcome Measures Since April 2015, we have performed 19 cases employing a direct endonasal approach with partial superior septectomy. Results and a technical note are described below...
April 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28321379/differentiation-between-posterior-sinuses-using-the-medial-orbital-floor-as-a-landmark
#7
Camila Degen Meotti, Otávio Bejzman Piltcher, Bruno Netto, Jaqueline Lemieszek, Michelle Lavinsky-Wolff, Felipe Marques do Rego Monteiro, Gustavo Rassier Isolan
Objectives This study aims to evaluate the difference in height between the floors of the posterior ethmoid and sphenoid sinuses with respect to the medial orbital floor (MOF) to confirm this difference as a landmark for identification of the posterior sinuses. It also aims to describe this difference regarding the type of pneumatization of the sphenoid sinus (conchal, presellar, and sellar). Design A cross-sectional study was conducted. Study Center The study was conducted at the Department of Radiology of Hospital de Clínicas de Porto Alegre, a tertiary care university hospital in Southern Brazil...
April 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28321374/ectopic-pituitary-adenomas-presenting-as-sphenoid-or-clival-lesions-case-series-and-management-recommendations
#8
Bobby A Tajudeen, Edward C Kuan, Nithin D Adappa, Joseph K Han, Rakesh K Chandra, James N Palmer, David W Kennedy, Marilene B Wang, Jeffrey D Suh
Background An ectopic pituitary adenoma presenting as a clival or sphenoid mass is a rare clinical occurrence that may mislead the clinician and result in unnecessary interventions or potential medicolegal consequences. Here, we present one of the largest multi-institutional case series and review the literature with an emphasis on radiological findings and critical preoperative workup. Methods Retrospective chart review. Results Nine patients were identified with ectopic pituitary adenomas of the sphenoid or clivus...
April 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28321371/anatomic-variations-in-pituitary-endocrinopathies-implications-for-the-surgical-corridor
#9
Edward C Kuan, Frederick Yoo, Won Kim, Karam W Badran, Thomas E Heineman, Ali R Sepahdari, Marvin Bergsneider, Marilene B Wang
Objectives/Hypotheses Functioning pituitary adenomas may produce endocrinopathies such as acromegaly and Cushing syndrome. Both conditions lead to characteristic anatomic variations as a result of hormonally induced abnormal soft tissue deposition. We evaluate the anatomic differences between acromegalics and Cushing disease patients and compare these dimensions to controls. Design Radiographic review of preoperative magnetic resonance images (MRI) of the pituitary gland. Setting Tertiary academic medical center...
April 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28302454/craniofacial-fibrous-dysplasia-a-10-case-series
#10
A Couturier, O Aumaître, L Gilain, B Jean, T Mom, M André
OBJECTIVES: Fibrous dysplasia of bone is a rare sporadic benign congenital condition in which normal cancellous bone is replaced by fibro-osseous tissue with immature osteogenesis. Sarcomatous transformation is exceptional. Lesions may involve one bone (monostotic) or several (polyostotic). Fibrous dysplasia may be associated with café-au-lait skin macules and endocrinopathy in McCune-Albright syndrome, or with myxoma in Mazabraud's syndrome. METHODS: We report ten cases of patients followed up for craniofacial fibrous dysplasia in our center between 2010 and 2015...
March 14, 2017: European Annals of Otorhinolaryngology, Head and Neck Diseases
https://www.readbyqxmd.com/read/28299014/deep-orbital-dermoid-cyst-bulging-into-the-superior-orbital-fissure-clinical-presentation-and-management
#11
Ravinder Kumar, Kapil Vyas, Gagan Jaiswal, Abhishek Bhargava, Jyoti Kundu
PURPOSE: To present a case of deep orbital dermoid cyst with emphasis on clinical presentation, imaging spectrum, differential diagnosis and management. CASE REPORT: A 28-year-old female was referred to our hospital with chief complaint of drooping of right eyelid and progressive headache. Ocular motility, visual acuity and fundus examination were normal. computed tomography (CT) and magnetic resonance imaging (MRI) revealed a well-defined, intraosseous deep orbital dermoid cyst (5...
January 2017: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/28293965/endoscopic-approach-for-a-delayed-post-traumatic-ethmoidal-mucocele-a-technical-note
#12
Mahmoud Messerer, Giulia Cossu, Roy Thomas Daniel
OBJECTIVE: Delayed post-traumatic mucoceles are rare. We describe the surgical treatment of a post-traumatic ethmoidal mucocele with intra-orbital extension. METHOD: A uninostril endoscopic endonasal approach (EEA) was performed. The access was contralateral to the lesion to provide a wider lateral view. After a large sphenoid and ethmoid sinuses opening, the collection was drained and the optic nerve precociously identified. The orbital roof was eroded and the frontal dura mater directly visible...
March 15, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28292204/a-national-survey-of-the-management-of-patients-with-incidental-meningioma-in-the-united-kingdom
#13
Mujtaba H Mohammad, Emmanuel Chavredakis, Rasheed Zakaria, Andrew Brodbelt, Michael D Jenkinson
BACKGROUND: Incidental meningiomas are increasingly being diagnosed due to widespread use of brain imaging. Treatment options include surveillance, surgery and stereotactic radiosurgery, but the natural history of these tumours is not fully understood and there are no accepted management guidelines to aid clinical decision-making. The aim of this study was to assess current practice in the United Kingdom and identify areas of variation for further study. METHODS: A questionnaire was distributed to all members of the Society of British Neurosurgeons (SBNS)...
March 15, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28289870/the-effects-of-choanal-atresia-on-development-of-the-paranasal-sinuses-and-turbinates
#14
Suat Terzi, Engin Dursun, Fatma Beyazal Çeliker, Metin Çeliker, Mehmet Beyazal, Abdulkadir Özgür, Emel Çadallı Tatar, Mehmet Hakan Korkmaz
PURPOSE: The objective of this study was to evaluate the volume of paranasal sinuses (PNS) and turbinate in patients with unilateral choanal atresia (CA). MATERIALS AND METHOD: Computed tomography images of PNS in 11 individuals with unilateral CA were evaluated retrospectively. Mucosal thickness and volume of the maxillary, frontal and sphenoidal sinuses were determined, in addition to the volume of the middle and inferior turbinate. The unaffected nasal side of patients was used as a control group for the measurements...
March 13, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28280680/unilateral-pterional-polycraniosynostosis-treated-with-craniectomy-and-helmet-therapy
#15
Jenaleen Law, Damian D Marucci, Robert J Gates, Adam Fowler
Craniosynostosis is a condition in which one or more of the cranial sutures have fused prematurely, affecting the growth pattern and contours of the infant skull. The pterion is the junction of temporal, frontal, parietal, and sphenoid bones of the skull. We present a case of unilateral pterional craniosynostosis, which was treated with strip craniectomy and helmet therapy.
February 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28276095/a-case-of-symptomatic-granular-cell-tumor-of-the-sellar-region-with-large-calcification
#16
Shun Yamamuro, Taku Homma, Yuya Hanashima, Sodai Yoshimura, Hideki Oshima, Sumie Ohni, Yoshiaki Kusumi, Atsuo Yoshino
We report here a rare case of symptomatic granular cell tumor (GCT) of the sellar region with a large calcification. A 70-year-old woman presented with a sellar mass, accompanied by bitemporal hemianopia. The patient was diagnosed preoperatively as having a craniopharyngioma or a pituitary adenoma, because of the large calcification. The patient underwent surgical tumor resection via endoscopic trans-sphenoidal surgery and was diagnosed pathologically as having GCT. The patient's postoperative course was uneventful and her visual field disturbance improved soon after the operation...
March 9, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/28272259/rathke-cleft-cyst-masquerading-as-pituitary-abscess-a-case-report
#17
Chengxian Yang, Xinjie Bao, Xiaohai Liu, Kan Deng, Ming Feng, Yong Yao, Renzhi Wang
BACKGROUND: Rathke cleft cyst (RCC) is a rare cystic sellar entity, which is usually small in size and asymptomatic in most patients. RCC presenting panhypopituitarism and a cystic lesion with rim enhancement on magnetic resonance imaging is extremely rare. Therefore, it is easy to be misdiagnosed as pituitary abscess because of the similar clinical manifestations and neuroimaging changes. CASE SUMMARY: We report a rare case of RCC masquerading as pituitary abscess clinically and radiologically with no evidence of central nervous system infection...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28263215/pituitary-adenoma-recurrence-suspected-on-central-hyperthyroidism-despite-empty-sella-and-confirmed-by-68-ga-dota-toc-pet-ct
#18
Mathieu Gauthé, Julie Sarfati, Nathalie Bourcigaux, Sophie Christin-Maitre, Jean-Noël Talbot, Françoise Montravers
Thyrotropin-secreting pituitary adenomas are very rare tumors, known to present overexpression of somatostatin receptor subtype 2 and which may consequently demonstrate abnormal uptake on Ga-DOTA-TOC PET/CT. A 67-year-old woman with a history of operated pituitary macroadenoma presented with symptoms of hyperthyroidism including a large goiter. Her serum thyroid hormone levels were in favor of central hyperthyroidism. Pituitary MRI depicted an empty sella but visualized an ambiguous lesion centered on the left sphenoidal sinus...
March 3, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28260644/diagnosis-of-drowning-electrolytes-and-total-protein-in-sphenoid-sinus-liquid
#19
Akira Hayakawa, Koichi Terazawa, Kotaro Matoba, Kie Horioka, Tatsushige Fukunaga
In this study, electrolyte (sodium (Na), chlorine (Cl), and magnesium (Mg)) and total protein (TP) concentrations and volume of liquid in the sphenoid sinus were examined to determine their usefulness to elucidate whether drowning occurred in freshwater or seawater. We examined 68 cases (seawater drowning group: 27 cases, freshwater drowning group: 21 cases, non-drowning group: 20 cases). There was a significant difference in Na, Cl, Mg, and TP concentrations of liquid in the sphenoid sinus among the three groups (seawater drowning, freshwater drowning, and non-drowning groups)...
February 24, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28255144/a-rare-case-of-large-sphenoethmoidal-osteoma
#20
Z Nazli, A W Abdul Fattah
Osteoma is the most common benign tumour of the nose and paranasal sinuses. However, involvement of the sphenoid sinus by osteoma is rare. Most of the time, patients with paranasal sinus osteoma are asymptomatic. However, symptoms may present, depending on the location and extension of the tumour. We report a case of a patient with sphenoethmoidal osteoma found incidentally on imaging, with evidence of impingement onto the optic nerve at the optic canal. However, the patient was asymptomatic. He was surgically treated using the endoscopic transnasal approach...
February 2017: Medical Journal of Malaysia
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