keyword
MENU ▼
Read by QxMD icon Read
search

Sella

keyword
https://www.readbyqxmd.com/read/28937488/the-significance-of-arachnoid-granulation-in-patients-with-idiopathic-intracranial-hypertension
#1
Gaurav Vishwasrao Watane, Bhumi Patel, Derek Brown, M Reza Taheri
PURPOSE: The aim of this article was to study the significance of arachnoid granulations (AGs) in patients with idiopathic intracranial hypertension (IIH). METHODS: In an institutional review board-approved retrospective chart review study, 79 patients with clinical diagnosis of idiopathic increased intracranial pressure were compared with 63 patients with a diagnosis of multiple sclerosis. Inclusion criteria also included available magnetic resonance imaging (MRI) of the brain, older than 18 years, and female sex...
September 20, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28935625/topographic-diagnosis-of-craniopharyngiomas-the-accuracy-of-mri-findings-observed-on-conventional-t1-and-t2-images
#2
R Prieto, J M Pascual, L Barrios
BACKGROUND AND PURPOSE: The topography of craniopharyngiomas has proved fundamental in predicting the involvement of vital brain structures and the possibility of achieving a safe radical resection. Beyond the imprecise term "suprasellar," indiscriminately used for craniopharyngiomas, an accurate definition of craniopharyngioma topography should be assessed by preoperative MR imaging. The objective of this study was to investigate the MRI findings that help define craniopharyngioma topography...
September 21, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28933335/re-evaluating-ttf-1-immunohistochemistry-in-diffuse-gliomas-expression-is-clonedependent-and-associated-with-tumor-location
#3
Drew Pratt, Nina Afsar, Michael Allgauer, Patricia Fetsch, Maryknoll Palisoc, Stefania Pittaluga, Martha Quezado
TTF-1 is widely used as a marker in routine surgical pathology in the work-up of malignancy. Aberrant expression of TTF-1 in extrapulmonary and extrathyroidal malignancies is a frequently reported phenomenon. In addition to the recently characterized pituicyte-derived tumors of the sella, immunoreactivity has been reported in diffuse gliomas with the SPT24 clone. Here, we sought to evaluate TTF-1 expression with three commercially available clones in a large series of gliomas. Expression was compared across the newly defined diagnostic entities in the 2016 WHO Classification of CNS Tumors...
September 21, 2017: Clinical Neuropathology
https://www.readbyqxmd.com/read/28933309/cigarette-smoking-is-associated-with-decreased-bone-gla-protein-bgp-levels-in-hemodialysis-patients
#4
Maria Fusaro, Maurizio Gallieni, Andrea Aghi, Giorgio Iervasi, Maria Antonietta Rizzo, Andrea Stucchi, Marianna Noale, Giovanni Tripepi, Thomas Nickolas, Nicola Veronese, Fabrizio Fabris, Sandro Giannini, Lorenzo Calò, Antonio Piccoli, Maria Cristina Mereu, Laura Cosmai, Alberto Ferraro, Fiorenza Magonara, Michela Spinello, Stefania Sella, Mario Plebani
BACKGROUND: Bone gamma-carboxyglutamic acid (Gla)-protein (BGP or osteocalcin) is a vitamin K-dependent protein involved in the regulation of bone mineralization. Smoking is a risk factor for osteoporosis. METHODS: We carried out a secondary analysis of the vitamin K Italian (VIKI) study to investigate the association between cigarette smoking and BGP levels in patients with end stage renal disease. Data were collected in 370 haemodialysis patients, 37% (136) smokers (or ex-smokers) and 63% (234) non-smokers...
September 19, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/28931257/morphometric-analysis-of-the-middle-clinoid-process-using-maxillofacial-computed-tomography-scans
#5
Christopher Miller, Roukoz Chamoun, David Beahm
BACKGROUND: The interest in detailed anatomy of the sella and parasellar regions has resurged recently due to the wide clinical applications of the expanded endoscopic approaches to the skull base. The middle clinoid process (MCP) is a bony structure that can affect wide endoscopic exposure of the sella and parasellar region. OBJECTIVE: To study and analyze the anatomic variations of the MCP in the general population using computed tomography scans. METHODS: A total of 150 maxillofacial computed tomography scans were reviewed to characterize the MCP...
February 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28925790/morphological-variation-of-the-caudal-fossa-of-domestic-cat-skulls-assessed-with-computed-tomography-and-geometric-morphometrics-analysis
#6
Caroline R Gordon, Thomas W Marchant, Joanna Lodzinska, Jeffery J Schoenebeck, Tobias Schwarz
Objectives This study aimed to investigate differences and demonstrate a normal range of morphological variation of the caudal fossa of the cranium of domestic cats. Methods CT scans of 32 domestic cat heads of 11 breeds were included. Isosurfaces from skulls were characterised through three-dimensional geometric morphometrics using geographical landmarks placed on the internal surface of the caudal fossa and foramen magnum. Raw data was transformed with a Procrustes fit and coordinate covariance was analysed by principal components to establish breed- and sex-level differences...
September 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28918450/clinical-utility-of-the-asdas-index-in-comparison-with-basdai-in-patients-with-ankylosing-spondylitis-axis-study
#7
Agustí Sellas I Fernandez, Xavier Juanola Roura, Alberto Alonso Ruiz, José Rosas, Julio Medina Luezas, Eduardo Collantes Estevez, Miguel Ángel Abad Hernández, Virginia Carrasco Benitez, Cesar Fisac
The objective of the study was to study the clinical utility of the Ankylosing Spondylitis Disease Activity Score (ASDAS) for the assessment of disease activity in ankylosing spondylitis (AS) patients, compared to the Bath Ankylosing Spondylitis Activity Index (BASDAI). This was a prospective longitudinal observational study in patients with AS (NY-modified criteria) from 23 Spanish centers. Physical and analytical data; global, lumbar, and nocturnal pain; ASDAS, BASDAI and minimally acceptable clinical status (PASS) were collected...
September 16, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28904276/a-case-of-acromegaly-in-which-a-pituitary-gland-tumor-was-reduced-significantly-by-administering-octreotide-long-acting-release-lar-and-could-be-removed-surgically
#8
Tadashi Arao, Yosuke Okada, Fumi Uemura, Shigeru Nishizawa, Yoshiya Tanaka
A 54-year-old woman was admitted to our hospital for detailed examination of acromegaly because she noticed bilateral hand and finger swelling at the age of 43 and plantar thickening, facial changes and unclear articulation at the age of 49. She had prominent brow ridges, mandibular protrusion, and enlargement of the hands, feet, nasal wings, lips and tongue. Her growth hormone (GH) level was 39.8 ng/ml, insulin-like growth factor-1 (IGF-1) level was 717 ng/ml, GH level was not suppressed (22.9 ng/ml) during a 75-g oral glucose tolerance test (OGTT)...
2017: Journal of UOEH
https://www.readbyqxmd.com/read/28887281/cerebrospinal-fluid-leak-rhinorrhea-after-systemic-erlotinib-chemotherapy-for-metastatic-lung-cancer-a-familiar-problem-from-an-unfamiliar-culprit
#9
Blake Priddy, Douglas A Hardesty, André Beer-Furlan, Bradley Otto, Daniel M Prevedello
BACKGROUND: Cerebrospinal fluid (CSF) rhinorrhea after medical therapy for pituitary prolactinoma is a rare but well-described phenomenon. To our knowledge, no CSF leaks have been reported after targeted medical treatment of pituitary or anterior skull base metastases. We report this unusual case to raise awareness of spontaneous CSF leaks in the setting of skull base metastatic disease. CASE PRESENTATION: A 66-year-old woman presented with EGFR-mutant Stage IV adenocarcinoma of the lung...
September 5, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28885086/enlarging-pediatric-ectopic-rathke-s-cleft-cyst-in-the-prepontine-cistern-case-report
#10
Takamasa Kamei, Masahiro Nonaka, Yoshiko Uemura, Yasuo Yamanouchi, Yumiko Komori, Ryoichi Iwata, Junichi Takeda, Tetsuo Hashiba, Kunikazu Yoshimura, Akio Asai
Rathke's cleft cyst is a cystic disease that occurs in the sella turcica or, occasionally, in the suprasellar area. An ectopic Rathke's cleft cyst is extremely rare, and its nature is less well understood. The authors report the case of a 14-year-old girl who presented with a growing cystic lesion in the prepontine cistern, immediately behind the dorsum sellae. Preoperative imaging and intraoperative investigation showed part of the cyst wall continuing into the dorsum sellae, to the pituitary gland. The cisternal portion of the cyst wall was totally resected via a right subtemporal approach...
September 8, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28875121/spontaneous-cerebrospinal-fluid-rhinorrhea-association-with-body-weight-and-imaging-data
#11
Raphaële Quatre, Arnaud Attye, Christian Adrien Righini, Emile Reyt, Joris Giai, Sébastien Schmerber, Alexandre Karkas
Objective  Spontaneous cerebrospinal fluid rhinorrhea (SCSFR) might be the only clinical manifestation of idiopathic intracranial hypertension (IIH), which has been historically related to overweight. Our goal was to search for an association between SCSFR and increased body weight on the one hand and SCSFR and imaging findings suggestive of IIH on the other hand. Materials and Methods  We retrospectively collected clinical and radiological data of patients operated on endoscopically for SCSFR in our institution from 1993 to 2013...
October 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28869136/basilar-artery-dolichoectasia-prevalence-and-correlates-with-markers-of-cerebral-small-vessel-disease-in-community-dwelling-older-adults
#12
Oscar H Del Brutto, Robertino M Mera, Victor J Del Brutto, Aldo F Costa, Mauricio Zambrano, James Brorson
BACKGROUND: Basilar artery (BA) dolichoectasia has been associated with cerebral small vessel disease (SVD). However, studies have focused on stroke patients, and results cannot be extrapolated to the population at large. In this study, we aimed to assess prevalence of BA dolichoectasia and its association with SVD in community-dwelling older adults living in rural Ecuador. METHODS: Atahualpa residents aged ≥60 years underwent brain magnetic resonance imaging and magnetic resonance angiography of intracranial vessels...
August 28, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28862492/three-dimensional-positional-assessment-of-glenoid-fossae-and-mandibular-condyles-in-patients-with-class-ii-subdivision-malocclusion
#13
Juliana Macêdo de Mattos, Juan Martin Palomo, Antonio Carlos de Oliveira Ruellas, Paula Loureiro Cheib, Manhal Eliliwi, Bernardo Quiroga Souki
OBJECTIVES: To test the null hypotheses that the positions of the glenoid fossae and mandibular condyles are identical on the Class I and Class II sides of patients with Class II subdivision malocclusion. MATERIALS AND METHODS: Retrospective three-dimensional (3D) assessments of the positions of the glenoid fossae and mandibular condyles were made in patients with Class II malocclusion. Relative to a fiducial reference at the anterior cranial base, distances from the glenoid fossae and condyles were calculated in pretreatment cone beam computed tomographic scans of 82 patients: 41 with Class II and 41 with Class II subdivision malocclusions...
September 1, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/28853696/amelanotic-melanocytoma-of-the-sella-mimicking-pituitary-adenoma
#14
Boleslaw Lach, Kesava Reddy, Doron D Sommer, Anthony C Whitton, Reena Baweja
We describe a 50-year-old man with a well-demarcated intra- and extrasellar lesion and clinical signs of a non-functioning pituitary adenoma. Neuropathological examination revealed tumor composed of non-pigmented spindle cells arranged in tightly packed nests separated by delicate vascular septae. There was no significant cellular atypia or mitotic activity, and Ki67-positive nuclei were present in less than 1% of cells. The neoplastic cells were positive for S-100 and vimentin, and negative for numerous cellular markers including HMB45, anti-melanoma cocktail antibodies, and Masson melanin stain...
August 30, 2017: Clinical Neuropathology
https://www.readbyqxmd.com/read/28846790/can-lateral-nasopharyngeal-radiographs-be-used-to-predict-eustachian-tube-dysfunction
#15
Karen Hawley, Neil Vachhani, Samantha Anne
The objective of our case-control study was to determine whether craniofacial features on lateral nasopharyngeal radiographs (LNPRs) can predict eustachian tube dysfunction (ETD). The study included patients seen in the otolaryngology clinic from 2005 to 2011. Patients 0 to 10 years old with pressure equalization tube (PET) placement and LNPR within 6 months were included. Measurements were compared with age-matched controls selected at random to identify craniofacial features associated with ETD. Using receiver operating curve methodology, selected measurements were used to correlate age, craniofacial features, and ETD...
August 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28845039/preoperative-and-postoperative-pituitary-function-in-patients-with-tuberculum-sellae-meningioma-based-on-pituitary-provocation-tests
#16
Shingo Fujio, Hirofumi Hirano, Mami Yamashita, Satoshi Usui, Yasuyuki Kinoshita, Atsushi Tominaga, Tomoko Hanada, Hitoshi Yamahata, Hiroshi Tokimura, Ryosuke Hanaya, Kaoru Kurisu, Kazunori Arita
Given the anatomical proximity of tuberculum sellae meningioma (TSM) to the hypothalamo-pituitary system, pituitary function impairments are of great concern. We retrospectively investigated pituitary function changes following surgery in patients with TSM using pituitary provocation tests (PPTs). Thirty-one patients (27 females and 4 males) with TSM underwent initial transcranial surgery (29 patients) or transsphenoidal surgery (two patients); surgeries were performed carefully to avoid injuring the pituitary stalk...
August 25, 2017: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/28843758/new-technique-for-chiasmapexy-using-iliac-crest-bone-graft-two-cases-of-visual-impairment-caused-by-empty-sella-syndrome
#17
Atsushi Tsukiyama, Yujiro Hattori, Shigeyuki Tahara, Eitaro Ishisaka, Daijiro Morimoto, Kenichi Oyama, Akira Teramoto, Akio Morita
BACKGROUND: Chiasmapexy is used to treat empty sella syndrome, and various materials are used for the elevation of the optic chiasm. However, the use of artificial substances may have the risk of graft infection, and fat and muscle may be absorbed over the long term after surgery. In addition, bone and cartilage may be unavailable in adequate amounts. Here, we describe a new technique for chiasmapexy using an iliac crest bone graft. CASE DESCRIPTION: The first patient was a 71-year-old woman who had undergone transsphenoidal surgery twice for the treatment of pituitary adenoma and Rathke's cleft cyst...
August 23, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28841122/folate-receptor-overexpression-can-be-visualized-in-real-time-during-pituitary-adenoma-endoscopic-transsphenoidal-surgery-with-near-infrared-imaging
#18
John Y K Lee, Steve S Cho, Ryan Zeh, John T Pierce, Maria Martinez-Lage, Nithin D Adappa, James N Palmer, Jason G Newman, Kim O Learned, Caitlin White, Julia Kharlip, Peter Snyder, Philip S Low, Sunil Singhal, M Sean Grady
OBJECTIVE Pituitary adenomas account for approximately 10% of intracranial tumors and have an estimated prevalence of 15%-20% in the general US population. Resection is the primary treatment for pituitary adenomas, and the transsphenoidal approach remains the most common. The greatest challenge with pituitary adenomas is that 20% of patients develop tumor recurrence. Current approaches to reduce recurrence, such as intraoperative MRI, are costly, associated with high false-positive rates, and not recommended...
August 25, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28828722/the-changing-sella-internal-carotid-artery-shift-during-transsphenoidal-pituitary-surgery
#19
Carlo Serra, Nicolai Maldaner, Giovanni Muscas, Victor Staartjes, Athina Pangalu, David Holzmann, Michael Soyka, Christoph Schmid, Luca Regli
PURPOSE: Injuries to the internal carotid artery (ICA) are potentially lethal complications in transsphenoidal surgery (TSS) for pituitary lesions. The intercarotid distance (ICD) is thus a major parameter, determining the width of the surgical corridor in TSS. The purpose of the study is to investigate changes in ICD at different levels of the ICA during and after TSS using high definition intraoperative MRI (3T-iMRI). METHODS: Pre-, intra- and 3 months postoperative MRI images of 85 TSS patients were reviewed...
August 21, 2017: Pituitary
https://www.readbyqxmd.com/read/28825890/case-245-erdheim-chester-disease
#20
Mark D Mamlouk, Mariam S Aboian, Christine M Glastonbury
History A 53-year-old man experienced headache and double vision that progressed over 1 year. After a traumatic fall, he was hospitalized, and proptosis was identified at physical examination. Laboratory tests were remarkable for leukocytosis. Hematocrit level, thyroid stimulating hormone level, autoimmune antibody level, erythrocyte sedimentation rate, and C-reactive protein level were normal. Computed tomography (CT) of the head revealed bilateral intraconal masses, for which magnetic resonance (MR) imaging of the orbits was subsequently performed ( Fig 1 )...
September 2017: Radiology
keyword
keyword
60210
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"