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https://www.readbyqxmd.com/read/28433840/the-unusual-presentation-of-a-myxoma-within-the-sphenoid-sinus-case-report-and-review-of-the-literature
#1
Julian V Clarke, Aditi H Mandpe, Peter B Weber, Hannes Vogel, Lewis Z Leng
BACKGROUND: We describe a rare case of a sphenoid sinus myxoma that was resected via an endoscopic endonasal skull base approach. We review the literature regarding these rare tumors of the paranasal sinuses. CASE DESCRIPTION: A 72 year old female was diagnosed with an incidental sphenoid sinus tumor and left sphenoid wing meningioma during work-up for left sided proptosis and diplopia. Biopsies of the sphenoid wing and sphenoid sinus tumors were obtained. After undergoing surgical resection of the meningioma, the patient then underwent definitive resection of the sphenoid sinus myxoma via endoscopic endonasal skull base approach...
April 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28430293/three-cases-of-ectopic-sphenoid-sinus-pituitary-adenoma
#2
Ernest Jan Bobeff, Karol Wiśniewski, Wielisław Papierz, Ludomir Stefańczyk, Dariusz Jan Jaskólski
<i><b>Introduction</b>: Ectopic sphenoid sinus pituitary adenoma is a rare tumour originating from embryologic remnants of Rathke's pouch. Although it is considered a clinically benign neoplasm, necrosis is encountered in 25% of cases and it can invade adjacent bone structures. <b>Aims</b>: To establish clinical, radiological and histopathological features of ectopic sphenoid sinus pituitary adenoma. <b>Material and methods: </b> Analysis of three cases: two females and one man, aged 61-70...
2017: Folia Neuropathologica
https://www.readbyqxmd.com/read/28421421/sphenoid-sinus-mucosal-thickening-in-the-acute-phase-of-pituitary-apoplexy
#3
Mueez Waqar, Robert McCreary, Tara Kearney, Konstantina Karabatsou, Kanna K Gnanalingham
PURPOSE: In pituitary apoplexy (PA), there are preliminary reports on the appearance of sphenoid sinus mucosal thickening (SSMT). SSMT is otherwise uncommon with an incidence of up to 7% in asymptomatic individuals. The aim of this study was to evaluate the incidence and clinical significance of SSMT in patients with PA and a control group of surgically treated non-functioning pituitary adenomas (NFPAs). METHODS: Retrospective review of clinical and imaging variables in PA and NFPA patients...
April 18, 2017: Pituitary
https://www.readbyqxmd.com/read/28413554/confounding-features-of-ectopic-craniopharyngioma-a-differential-for-tumors-showing-diffusion-restriction
#4
Sudha Karnan, Vanitha Krishnamoorthy, Kailasanathan Natarajan, Babu Peter Sathyanathan
Craniopharyngiomas comprise approximately 1-3% of all intracranial tumors and arise from squamous epithelial rests along remnants of Rathke's cleft. They have bimodal age distribution. The ectopic sites reported are the nasopharynx, sphenoid bone, pineal region, cerebellopontine angle and third ventricle. We report a case of ectopic craniopharyngioma in the Foramen of Monro with restricted diffusion, which have is an unusual feature, not commonly reported and is a potential pitfall.
January 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28413541/clival-giant-cell-tumor-a-rare-case-report-and-review-of-literature-with-respect-to-current-line-of-management
#5
Mohana Rao Patibandla, Amit Kumar Thotakura, Marabathina Nageswara Rao, Gokul Chowdary Addagada, Manisha Chowdary Nukavarapu, Manas Kumar Panigrahi, Shantiveer Uppin, Sundaram Challa, Srinivas Dandamudi
Giant-cell tumor (GCT) involving the skull base is rare. Sphenoid bone is the most commonly involved bone followed by petrous temporal bone. Histopathology and radiological features of these lesions are similar to GCT involving bone elsewhere. Unlike other sites, skull base is not an ideal site for the radical surgery. Hence adjuvant treatment has pivotal role. Radiation therapy with intensity-modulated radiation therapy, stereotactic radiosurgery or chemotherapy with adriamycin are promising as described in some case reports...
January 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28413523/predictors-of-visual-outcome-with-transsphenoidal-excision-of-pituitary-adenomas-having-suprasellar-extension-a-prospective-series-of-100-cases-and-brief-review-of-the-literature
#6
Amit Kumar Thotakura, Mohana Rao Patibandla, Manas K Panigrahi, Gokul Chowdary Addagada
OBJECTIVE: The aim was to assess the factors influencing the visual outcome following trans-sphenoidal excision of pituitary adenomas. MATERIALS AND METHODS: One hundred consecutive patients of pituitary adenomas with suprasellar extension (SSE) were operated by trans-sphenoidal approach from July 2003 to December 2006. There were 52 male and 48 female patients with a mean age of 42.47 years. The visual impairment score, which was used to evaluate the visual outcome was produced by adding the scores for visual acuity and visual field defects of each patient (from the tables of the German Ophthalmological Society)...
January 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28409229/sphenoid-dysplasia-in-neurofibromatosis-type-1-a-new-technique-for-repair
#7
Di Rocco Concezio, Samii Amir, Tamburrini Gianpiero, Massimi Luca, Giordano Mario
PURPOSE: Sphenoid bone dysplasia in neurofibromatosis type 1 is characterized by progressive exophthalmos and facial disfiguration secondary to herniation of meningeal and cerebral structures. We describe a technique for reconstruction of the sphenoid defect apt at preventing or correcting the ocular globe dislocation. METHODS: After placement of spinal cerebrospinal fluid drainage to reduce intracranial pressure, the temporal pole is posteriorly dislocated extradurally...
April 13, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28406001/disabling-osteopetrosis-in-an-young-lady
#8
Gouranga Santra, Shinjan Patra, Partha Pratim Chakraborty
Osteopetrosis is a rare disorder of osteoclastic bone resorption leading to hyperostosis. Albers-Schonberg disease, an autosomal dominant variant of osteopetrosis occurs in young adults and has a benign course. A 17 year old female presented with generalized weakness and pallor for last two months. She had insidious onset and gradually progressive loss of vision and hearing for last two years. Plain x-ray of skull revealed increased radio-opacity of skull bones specially in the base, severe under-pneumatization of frontal and sphenoidal sinuses...
December 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/28403237/evidence-of-neurofibromatosis-type-1-in-a-multi-morbid-inca-child-mummy-a-paleoradiological-investigation-using-computed-tomography
#9
Stephanie Panzer, Holger Wittig, Stephanie Zesch, Wilfried Rosendahl, Sandra Blache, Magdalena Müller-Gerbl, Gerhard Hotz
OBJECTIVE: In this study, an Inca bundle was examined using computed tomography (CT). The primary aim was to determine the preservation status of bony and soft tissues, the sex, the age at the time of death, possible indicators for disease or even the cause of death, as well as the kind of mummification. A secondary aim was to obtain a brief overview of the wrapping in order to gain additional information on the cultural background. MATERIALS AND METHODS: The bundle belongs to the Museum of Cultures in Basel, Switzerland, and was bought in Munich, Germany, in 1921...
2017: PloS One
https://www.readbyqxmd.com/read/28403108/analyses-and-treatments-of-postoperative-nasal-complications-after-endonasal-transsphenoidal-resection-of-pituitary-neoplasms
#10
You Cheng, Fei Xue, Tian-You Wang, Jun-Feng Ji, Wei Chen, Zhi-Yi Wang, Li Xu, Chun-Hua Hang, Xin-Feng Liu
In this study, we analyze and discuss the treatments of postoperative nasal complications after endonasal transsphenoidal resection of pituitary neoplasms (PNs). We performed 129 endonasal transsphenoidal resections of PNs and analyzed and treated cases with nasal complications. After endonasal transsphenoidal resection of PNs, there were 26 cases of postoperative nasal complications (20.1%), including nasal hemorrhage (4.8%), cerebrospinal fluid rhinorrhea (6.9%), sphenoid sinusitis (2.3%), atrophic rhinitis (1...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28384876/primary-ewing-sarcoma-of-sphenoid-bone-with-intracranial-extension-a-common-tumour-at-an-uncommon-location
#11
Guddi Rani Singh, Vijayanand Choudhary, Rawi Agrawal
Primary Ewing Sarcoma of the cranial bone is rare, contributing to only 1% of all Ewing Sarcomas. Primary cranial Ewing Sarcoma occurs most commonly in temporal bone followed by parietal and occipital bones. Sphenoid bone is less commonly involved. We report a case of Ewing Sarcoma of the sphenoid bone with intra-cranial extension in a 20-month-old boy. On CT scan a provisional diagnosis of rhabdomyosarcoma was made. Fine Needle Aspiration Cytology (FNAC) and histopathological examination of core needle biopsy showed small round cell tumour...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28382185/isolated-fracture-of-lateral-pterygoid-plate-by-penetrating-foreign-body-a-rarity-indeed
#12
Mukesh Surya, Pawan Soni, Ramesh Bharti, Ira Jamwal
BACKGROUND: Fractures of mid-face were first described by Le Fort and are classified into three categories - Le Fort I, Le Fort II and Le Fort III. The pterygoid processes of the sphenoid bone are fractured in all the three categories of Le Fort fractures as the sphenoid bone connects the cranium vault to the facial bones. Fractures of the pterygoid processes without associated Le Fort fractures are rare and are usually associated with fractures of the mandible, temporal bone or other facial bones...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28381323/flexible-microsensor-technology-for-real-time-navigation-tracking-in-balloon-sinus-ostial-dilation
#13
Kent Lam, Jo-Lawrence Bigcas, Amber Luong, William Yao, Martin J Citardi
BACKGROUND: Microsensor navigation has the potential to aid balloon sinus ostial dilation by providing real-time tracking of balloon devices within the complex anatomy of the sinonasal cavities. OBJECTIVE: This feasibility study evaluated the incorporation of a new microsensor technology into a flexible guidewire for use with current instruments in balloon sinus ostial dilation. METHODS: A retrospective study was conducted to include seven men and one woman (age range, 33-68 years), who underwent balloon sinus ostial dilation with flexible microsensor navigation in the operating room setting...
March 1, 2017: Allergy & Rhinology
https://www.readbyqxmd.com/read/28377728/tissue-nonspecific-alkaline-phosphatase-tnap-regulates-cranial-base-growth-and-synchondrosis-maturation
#14
Hwa K Nam, Monika Sharma, Jin Liu, Nan E Hatch
Hypophosphatasia is a rare heritable disorder caused by inactivating mutations in the gene (Alpl) that encodes tissue nonspecific alkaline phosphatase (TNAP). Hypophosphatasia with onset in infants and children can manifest as rickets. How TNAP deficiency leads to bone hypomineralization is well explained by TNAP's primary function of pyrophosphate hydrolysis when expressed in differentiated bone forming cells. How TNAP deficiency leads to abnormalities within endochondral growth plates is not yet known. Previous studies in hypophosphatemic mice showed that phosphate promotes chondrocyte maturation and apoptosis via MAPK signaling...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28376710/electrocardiographic-changes-mimicking-acute-coronary-syndrome-in-a-large-intracranial-tumour-a-diagnostic-dilemma
#15
Nilukshana Yogendranathan, H M M T B Herath, S P Pahalagamage, Aruna Kulatunga
BACKGROUND: ST elevation Myocardial infarction is a medical emergency. A variety of noncardiac conditions had been known to mimic the ECG changes that are seen in acute coronary syndrome. Although the common ECG changes that are documented with raised intracranial pressure are T inversions, prolongation of QT interval and sinus bradycardia, ST elevation or depression, arrhythmias and prominent U waves have also been recognized. However, ST elevations in association with primary intracranial tumours are rarely reported...
April 4, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28374239/radiological-imaging-findings-of-dyke-davidoff-masson-syndrome
#16
Erkan Gökçe, Murat Beyhan, Recep Sade
Radiological findings of Dyke-Davidoff-Masson syndrome (DDMS) in patients with different etiologies are presented in our study. The study included 12 patients (seven females, five males) for whom radiological examinations were requested due to reasons such as epilepsy, mental retardation, and/or hemiplegia. CT was performed in 12, MRI in 6, MRA in 1, and DSA in 1 patient. Following imaging findings were evaluated: cerebral and cerebellar involvement (laterality, encephalomalacia), affected territories, ventricular enlargement, sulcal enlargement, calvarial thickening, and paranasal sinus enlargement hyperaeration...
April 3, 2017: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/28372859/the-wedge-sign-an-imaging-sign-for-aggressive-lacrimal-gland-disease
#17
Daniele Lorenzano, Geoffrey E Rose
PURPOSE: Lacrimal gland carcinoma can form a triangle of tissue back to the orbital apex, intraconal spread apparently being prevented by the intermuscular septum. The "wedge sign" frequency is assessed in lacrimal carcinoma, lacrimal lymphoma, or dacryoadenitis. DESIGN: Retrospective masked review of images from patients with biopsy-proven lacrimal gland pathology. METHODS: For each patient, the presence of a triangle of tissue between the lateral rectus and lateral orbital wall and the superior rectus and the orbital roof was assessed by masked review of computed tomography or magnetic resonance imaging...
March 31, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28357538/anatomical-variants-of-sphenoid-sinuses-pneumatisation-a-ct-scan-study-on-a-northern-italian-population
#18
Daniele Gibelli, Michaela Cellina, Stefano Gibelli, Antonio Giancarlo Oliva, Giovanni Termine, Chiarella Sforza
Sphenoid bone may be affected by different variants of pneumatisation, which have a relevant importance from a clinical and surgical point of view. The description of such variants in different populations may give useful information. However, few articles describe the variability of sphenoid pneumatised structures and none of them focuses on Northern Italian population. Variants of pneumatisation of sphenoid bone were described in a sample of 300 Northern Italian patients who underwent a CT scan. More than fifty-seven percent of patients showed a form of anatomical variant: the most common form was the pneumatised pterygoid processes (39...
March 30, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28349500/the-polymorphous-history-of-a-polymorphous-skull-bone-the-sphenoid
#19
REVIEW
Claudia Costea, Serban Turliuc, Andrei Cucu, Gabriela Dumitrescu, Alexandru Carauleanu, Catalin Buzduga, Anca Sava, Irina Costache, Dana Turliuc
For a long time, because of its location at the skull base level, the sphenoid bone was rather mysterious as it was too difficult for anatomists to reach and to elucidate its true configuration. The configuration of the sphenoid bone led to confusion regarding its sutures with the other skull bones, its shape, its detailed anatomy, and the vascular and nervous structures that cross it. This article takes the reader on a journey through time and space, charting the evolution of anatomists' comprehension of sphenoid bone morphology from antiquity to its conception as a bone structure in the eighteenth century, and ranging from ancient Greece to modern Italy and France...
March 27, 2017: Anatomical Science International
https://www.readbyqxmd.com/read/28347678/one-and-a-half-syndrome-following-penetrating-head-injury-case-report
#20
Mathew R Voisin, Sanskriti Sasikumar, Jeremy H Russell, Gelareh Zadeh
The authors report a case of a 22-year-old otherwise healthy female who presented following a head injury during a bar altercation, with no associated loss of consciousness and an unknown mechanism of injury. Examination revealed an isolated 1cm laceration on the right upper eyelid, superior to her medial canthus. She experienced diplopia on right horizontal gaze due to a left internuclear ophthalmoplegia (INO) with an associated left conjugate horizontal gaze palsy, collectively described as a left one-and-a-half syndrome...
March 24, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
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