keyword
MENU ▼
Read by QxMD icon Read
search

Orbital apex

keyword
https://www.readbyqxmd.com/read/29062482/ocular-tuberculosis-in-hospital-universiti-sains-malaysia-a-case-series
#1
M Shahidatul-Adha, E Zunaina, A T Liza-Sharmini, W H Wan-Hazabbah, I Shatriah, I Mohtar, Y Azhany, H Adil
INTRODUCTION: Ocular tuberculosis (TB) encompasses a broad spectrum of clinical manifestations affecting different structures of the eye. It is caused by Mycobacterium tuberculosis, a great ancient organism that induces various types of diseases and unfavorable outcomes if unrecognized and not well treated. PURPOSE: To report the clinical profile of 34 ocular TB cases observed during 6 years period in Hospital Universiti Sains Malaysia (HUSM). METHOD: A retrospective review of medical records from 34 patients diagnosed with ocular TB in HUSM from January 2011 until December 2016...
December 2017: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/29058243/orbital-fat-volume-in-the-inferolateral-quadrant-in-japanese-a-guide-for-orbital-fat-decompression-without-injury-to-the-oculomotor-nerve
#2
Yasuhiro Takahashi, Yoshiyuki Kitaguchi, Maria Suzanne Sabundayo, Hirohiko Kakizaki
PURPOSE: The inferior oblique muscle branch of the oculomotor nerve is susceptible to injury during orbital fat removal from the inferolateral quadrant of the orbit. Understanding the amount of removable orbital fat volume in this quadrant may be helpful in achieving maximum fat decompression without causing nerve injury. The aim of this study was to calculate the orbital fat volume in the inferolateral quadrant using computed tomographic (CT) images. METHODS: In this retrospective, observational study, contiguous 1-mm coronal CT images were obtained from 53 sides (30 patients)...
October 20, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28950832/orbital-apex-syndrome-secondary-to-a-fungal-nasal-septal-abscess-caused-by-scedosporium-apiospermum-in-a-patient-with-uncontrolled-diabetes-a-case-report
#3
Ippei Kishimoto, Shogo Shinohara, Tetsuhiro Ueda, Shoichi Tani, Hajime Yoshimura, Yukihiro Imai
BACKGROUND: Orbital apex syndrome is a localized type of orbital cellulitis, where mass lesions occur at the apex of the cranial nerves. Although nasal septal abscess is uncommon, the organism most likely to cause nasal septal abscess is Staphylococcus aureus, and fungal septal abscesses are rare. Here we present an extremely rare and serious case of orbital apex syndrome secondary to fungal nasal septal abscess caused by Scedosporium apiospermum in a patient with uncontrolled diabetes...
September 26, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28949779/three-presentations-of-cns-disease-in-patients-with-intraocular-retinoblastoma-at-a-tertiary-medical-center-in-the-united-states
#4
Jonathan W Kim, Bradley H Jacobsen, Marcus Ko, Diana K Lee, Rima F Jubran, Jesse L Berry
BACKGROUND: Patients with intraocular retinoblastoma who present with central nervous (CNS) disease at diagnosis is very rare in developed countries. METHODS: Herein, we report a review of patients with intraocular retinoblastoma diagnosed with concurrent CNS disease in the United States between January 2011 and June 2013. RESULTS: Three patients were identified in this review. The first case is a 2-year old male who presented with unilateral Group E retinoblastoma, optic nerve infiltration to the orbital apex, and a suprasellar mass...
September 26, 2017: Ophthalmic Genetics
https://www.readbyqxmd.com/read/28940141/iq%C3%A2-spect-technology-and-its-clinical-applications-using-multicenter-normal-databases
#5
REVIEW
Kenichi Nakajima, Koichi Okuda, Mitsuru Momose, Shinro Matsuo, Chisato Kondo, Masayoshi Sarai, Takayuki Shibutani, Masahisa Onoguchi, Takeshi Shimizu, A Hans Vija
IQ·SPECT (Siemens Medical Solutions) is a solution for high-sensitivity and short-time acquisition imaging of the heart for a variable angle general purpose gamma camera. It consists of a multi-focal collimator, a cardio-centric orbit and advanced iterative reconstruction, modeling the image formation physics accurately. The multi-focal collimator enables distance-dependent enlargement of the center region while avoiding truncation at the edges. With the specified configuration and a cardio-centric orbit it can obtain a fourfold sensitivity increase for the heart at the center of the scan orbit...
November 2017: Annals of Nuclear Medicine
https://www.readbyqxmd.com/read/28931253/relationship-of-the-optic-nerve-to-the-medial-rectus-muscle-during-endonasal-dissection-of-the-medial-intraconal-orbital-apex
#6
Dmitriy Petrov, John Craig, Jayesh Thawani, Kalil Abdullah, James N Palmer, Nithin D Adappa, John Y K Lee
BACKGROUND: Few studies have established surgical landmarks for endoscopic endonasal dissection of the intraconal orbital apex (OA). OBJECTIVE: We describe the optic nerve (ON) anatomy and its relationships, as seen during a fully endoscopic, endonasal approach to the medial intraconal OA. METHODS: The study question was approached through a cadaver dissection and a radiographic study. Four formalin-fixed, latex-injected cadaver heads were dissected using transnasal endoscopic techniques...
February 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28924417/an-erosive-lesion-in-the-orbital-apex-as-the-presenting-sign-of-sarcoidosis
#7
David Nasrazadani, Anjulie K Quick, William A White
Sarcoidosis is an autoimmune granulomatous disease that can affect any organ system in the body. Ocular and orbital manifestations are relatively common. Osseous involvement is rare and usually involves bones of the appendicular skeleton. We present an unusual case of an erosive sarcoid granuloma in a 48-year-old woman that involved the orbital apex. This case highlights diagnosis, treatment, and the importance of full systemic workup to determine the extent of the disease.
2017: Digital Journal of Ophthalmology: DJO
https://www.readbyqxmd.com/read/28893971/computed-tomographic-assessment-of-equine-maxillary-cheek-teeth-anatomical-relationships-and-paranasal-sinus-volumes
#8
Tiziana Liuti, Richard Reardon, Paddy M Dixon
Disorders affecting the equine maxillary cheek teeth and paranasal sinuses are relatively common, but limited objective information is available on the dimensions and relationships of these structures in horses of different ages. The aims of this study were to assess age-related changes in the positioning and anatomical relationships of the individual maxillary cheek teeth with the infraorbital canal and maxillary septum and the volumes of the individual sinus compartments. CT and gross examination were performed on 60 normal equine cadaver heads that were aged by their dentition...
October 28, 2017: Veterinary Record
https://www.readbyqxmd.com/read/28875880/orbital-apex-syndrome-after-trauma-in-a-6-year-old-a-rare-occurrence
#9
A Ahmed
Orbital apex syndrome is rare, but can occur as a consequence of trauma from fracture of the medial orbit. This case report highlights the fact that a high index of suspicion is needed when a patient presents with a facial injury, especially in children who cannot give an account of the actual events that transpired. Radiological investigation should be done early when an underlying injury is suspected in a trauma patient. A low threshold for computed tomography should be maintained when proptosis and vision loss are present...
August 25, 2017: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
https://www.readbyqxmd.com/read/28862553/transorbital-endoscopic-eyelid-approach-for-resection-of-sphenoorbital-meningiomas-with-predominant-hyperostosis-report-of-2-cases
#10
João Paulo Almeida, Sacit B Omay, Sathwik R Shetty, Yu-Ning Chen, Armando S Ruiz-Treviño, Buqing Liang, Vijay K Anand, Benjamin Levine, Theodore H Schwartz
Sphenoorbital meningiomas (SOMs) are slow-growing tumors that originate from the sphenoidal wing and are associated with visual deterioration, extrinsic ocular movement disorders, and proptosis caused by hyperostosis of the lateral wall of the orbit. In some cases, the intracranial component is quite small or "en plaque," and the majority of the symptoms arise from adjacent hyperostosis. Craniotomy has traditionally been the standard of care, but new minimally invasive multiportal endoscopic approaches offer an alternative...
September 1, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28845040/surgical-anatomy-for-the-endoscopic-endonasal-approach-to-the-ventrolateral-skull-base
#11
Kenichi Oyama, Shigeyuki Tahara, Toshio Hirohata, Yudo Ishii, Daniel M Prevedello, Ricardo L Carrau, Sebastien Froelich, Akira Teramoto, Akio Morita, Akira Matsuno
The authors describe the surgical anatomy for the endoscopic endonasal approach (EEA) to the ventrolateral skull base. The ventrolateral skull base can be divided into two segments: the upper lateral and lower lateral skull base. The upper lateral skull base includes the cavernous sinus and the orbit, while the lower lateral skull base includes the petrous apex, Meckel's cave, parapharyngeal space, infratemporal fossa, etc. To gain access to the upper lateral skull base, a simple opening of the ethmoid sinus provides sufficient exposure of this area...
October 15, 2017: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/28814902/orbital-apex-cyst-a-rare-cause-of-compressive-optic-neuropathy-post-functional-endoscopic-sinus-surgery
#12
Yi Ni Koh, Shu Fen Ho, Letchumanan Pathma, Harvinder Singh, Embong Zunaina
There are various causes that can lead to compressive optic neuropathy. We present here orbital apex cyst as an unusual cause of compressive optic neuropathy in a 49-year-old male. He presented with 2 weeks painless loss of vision in the left eye with left-sided headache. He had had left functional endoscopic sinus surgery for left nasal polyps 4 years earlier. Magnetic resonance imaging of brain and orbit revealed a left discrete orbital nodule, possibly orbital cyst or mucocele, which was compressing on the left optic nerve...
2017: International Medical Case Reports Journal
https://www.readbyqxmd.com/read/28800388/rapid-access-to-nanographenes-and-fused-heteroaromatics-by-palladium-catalyzed-annulative-%C3%AF-extension-reaction-of-unfunctionalized-aromatics-with-diiodobiaryls
#13
Wataru Matsuoka, Hideto Ito, Kenichiro Itami
Efficient and rapid access to nanographenes and π-extended fused heteroaromatics is important in materials science. Herein, we report a palladium-catalyzed efficient one-step annulative π-extension (APEX) reaction of polycyclic aromatic hydrocarbons (PAHs) and heteroaromatics, producing various π-extended aromatics. In the presence of a cationic Pd complex, triflic acid, silver pivalate, and diiodobiaryls, diverse unfunctionalized PAHs and heteroaromatics were directly transformed into larger PAHs, nanographenes, and π-extended fused heteroaromatics in a single step...
August 11, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28718689/orbital-diffuse-large-b-cell-lymphoma-with-combined-variable-immunodeficiency
#14
Vishal S Parikh, Deepa Jagadeesh, James M Fernandez, Eric D Hsi, Arun D Singh
Common variable immunodeficiency (CVID) is a primary immunodeficiency manifesting as a reduction in the level of total immunoglobulin (Ig) G, a reduction in the level of either IgA or IgM, poor response to polysaccharide vaccine, and usually frequent infections. The association of CVID with an increased risk of malignancy, specifically lymphoma, is well known. A 63-year-old female with a past medical history significant for CVID presented with a 1-month history of dull, left eye pain with proptosis, hypoglobus, and left upper lid fullness without a discrete palpable mass...
July 18, 2017: Orbit
https://www.readbyqxmd.com/read/28658180/morphometric-analysis-of-the-orbital-process-of-the-palatine-bone-and-its-relationship-to-endoscopic-orbital-apex-surgery
#15
Sarina K Mueller, Suzanne K Freitag, Benjamin S Bleier
BACKGROUND: Endoscopic approaches to the orbit improve the ability to directly access apical lesions while minimizing manipulation of normal structures. Inferomedial orbital access is limited by the orbital process of the palatine bone (OPPB) which prevents dissection and retraction in the inferolateral vector. OBJECTIVE: The objective of this study was to examine the morphometric characteristics of the OPPB and quantify the benefit of complete resection to surgical access...
June 19, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28636148/magnetostructural-characterization-of-oxalamide-dihalo-bridged-copper-dimers-intra-and-interdimer-interactions-studied-by-single-crystal-electron-spin-resonance-spectroscopy
#16
Dijana Žilić, Debdeep Maity, Mario Cetina, Krešimir Molčanov, Zoran Džolić, Mirta Herak
Detailed single-crystal electron spin resonance (ESR) analysis of oxalamide complexes with halogen-bridged copper dimers, supported by X-ray, magnetic susceptibility, and powder ESR studies, is reported. Four complexes with two different ligands are synthesized: [CuL(A) (μ-X)]2 and [CuL(V) (μ-X)]2 , for which L(A) =N-(l-alanine methyl ester)-N'-[(2-pyridine-2-yl)methyl]oxalamide and L(V) =N-(l-valine methyl ester)-N'-[(2-pyridine-2-yl)methyl]oxalamide, for which X=Cl or Br. X-ray analysis shows that the geometry at each copper(II) ion is square pyramidal, whereas two pyramids share one base-to-apex edge with parallel basal planes...
June 21, 2017: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/28622058/herpes-zoster-ophthalmicus-with-orbital-apex-syndrome-difference-in-outcomes-and-literature-review
#17
Jie Jie Lim, Yu Ming Ong, M Zain Wan Zalina, May May Choo
No abstract text is available yet for this article.
June 16, 2017: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/28606263/-three-dimensional-vector-analysis-after-decompression-surgery-in-thyroid-associated-ophthalmopathy
#18
J Guo, J Qian, X F Li, F X Meng, R Q Ma
Objective: To analyze the change of globe position after different orbital decompression in thyroid-associated ophthalmopathy (TAO). Methods: It was a retrosective case series study. Twenty-nine TAO patients (33 eyes) underwent orbital decompression were collected between October 2014 and December 2016 at Eye & ENT Hospital of Fudan University. There were 17 males and 12 females, and the average age was 46 years (ranging from 21 to 66 years). Fifteen patients (17 eyes) underwent balanced decompression, 11 patients (11 eyes) underwent deep lateral decompression, and 4 patients (5 eyes) underwent medial decompression...
June 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28593110/endoscopic-endonasal-transclival-approach-versus-dual-transorbital-port-technique-for-clip-application-to-the-posterior-circulation-a-cadaveric-anatomical-and-cerebral-circulation-simulation-study
#19
Jeremy N Ciporen, Brandon Lucke-Wold, Aclan Dogan, Justin Cetas, William Cameron
Purpose  Simulation training offers a useful opportunity to appreciate vascular anatomy and develop the technical expertise required to clip intracranial aneurysms of the posterior circulation. Materials and Methods  In cadavers, a comparison was made between the endoscopic transclival approach (ETA) alone and a combined multiportal approach using the ETA and a transorbital precaruncular approach (TOPA) to evaluate degrees of freedom, angles of visualization, and ergonomics of aneurysm clip application to the posterior circulation depending on basilar apex position relative to the posterior clinoids...
June 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28554552/orbital-and-orbitocranial-trauma-from-pencil-fragments-role-of-timely-diagnosis-and-management
#20
Won-Kyung Cho, Audrey C Ko, Habibullah Eatamadi, Abdelqadir Al-Ali, Jean-Paul Abboud, Don O Kikkawa, Bobby S Korn
PURPOSE: To emphasize the importance of early detection and radiologic evaluation of retained organic foreign bodies (FBs) in orbital or orbitocranial penetrating injuries by pencil. DESIGN: Retrospective case series. METHODS: A retrospective chart review of patients who had penetrating orbital or orbitocranial trauma at 2 tertiary hospitals was conducted. Patients whose mechanism of injury was penetrating trauma by pencil were included. The patients' demographics, time between initial trauma and detection of foreign body, radiologic images, and resulting sequelae were reviewed...
August 2017: American Journal of Ophthalmology
keyword
keyword
19139
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"