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Orbital apex

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https://www.readbyqxmd.com/read/28152321/a-case-report-of-rim-enhancing-lesion-at-the-orbital-apex
#1
Rachna Agarwal, Vikas Kanaujia, Priyadarshini Mishra, R V Phadke, Kumudini Sharma
We report a case of partial third nerve palsy resulting from a cystic lesion located at the orbital apex. Imaging was suggestive of cystic schwanomma but histopathology of the lesion confirmed epidermoid cyst, which is a rare tumour of the orbit.
February 2, 2017: Orbit
https://www.readbyqxmd.com/read/28151875/java-brucea-and-chinese-herbal-medicine-for-the-treatment-of-cholesterol-granuloma-in-the-suprasellar-and-sellar-regions-a-case-report-and-literature-review
#2
Zhe Sun, Yang Cao, Lin-Zhu Zhai
RATIONALE: A cholesterol granuloma (CG) is usually found in the middle ear, papilla, orbits, petrous apex, and choroid plexus, but is highly uncommon in the skull. In spite of benign clinicopathological lesions, bone erosion can be seen occasionally in the patient with CG. The optimal treatment strategy is radical surgery, but complete excision is usually impossible due to anatomical restrictions and a risk of injury to the key structures located nearby. Here, we report a patient with CGs in the suprasellar and sellar regions who was successfully treated with Java brucea and Chinese herbal medicine...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28100683/impact-of-microscopic-orbital-periosteum-invasion-in-orbital-preservation-surgery
#3
Kenya Kobayashi, Taisuke Mori, Fumihiko Matsumoto, Naoya Murakami, Masanori Teshima, Masahiko Fukasawa, Yoshifumi Matsumoto, Satoko Matsumura, Jun Itami, Masahiro Asai, Seiichi Yoshimoto
OBJECTIVE: The orbital periosteum is considered to be a barrier to tumor spread; however, it is difficult to evaluate microscopic tumor spread during surgery. This study aimed to assess the impact of pathological status in orbital preservation surgery. METHODS: We retrospectively analyzed the 3-year local control rate and treatment outcomes of patients with malignant tumors invading the orbit who were treated between 2006 and 2012. RESULTS: In total, 27 patients were reviewed over a median follow-up period of 36 months...
January 17, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28099232/keratocystic-odontogenic-tumor-involving-the-orbital-apex
#4
Adam R Sweeney, Jasjit K Dillon, Christopher B Chambers
No abstract text is available yet for this article.
January 17, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28097083/recurrent-squamous-cell-carcinoma-of-the-eyelid-presenting-as-trigeminal-neuralgia
#5
Nicole Spitzer, Naazli Shaikh, Leah Strickland, Son Ho
This paper describes two patients with squamous cell carcinoma (SCC) of the periocular and periorbital skin who presented with trigeminal neuralgia. Both patients had previous cutaneous SCC of the scalp treated successfully with surgical resection but later presented with neuro-ophthalmic findings suggesting perineural invasion (PNI) of SCC. PNI of SCC in the periocular skin or orbit can lead to devastating effects if malignant cells seed into the orbit and adjacent cranial nerves as our two patients developed an orbital apex syndrome...
December 16, 2016: Curēus
https://www.readbyqxmd.com/read/28061417/concurrent-hyphema-and-orbital-apex-syndrome-following-herpes-zoster-ophthalmicus-in-a-middle-aged-lady
#6
Khairuddin Othman, Li Min Evelyn-Tai, Mohd Noor Raja-Azmi, Muhammed Julieana, Ahmad Tajudin Liza-Sharmini, John Tharakan, Alwi Muhd Besari, Embong Zunaina, Ismail Shatriah
INTRODUCTION: Hyphema and orbital apex syndrome occurring concurrently in a patient with herpes zoster ophthalmicus have not been reported previously. We present a case with these unique findings and discuss the pathogenesis of these conditions and their management. PRESENTATION OF CASE: A 59-year-old Malay lady with underlying diabetes mellitus presented with manifestations of zoster ophthalmicus in the left eye. Two weeks later, she developed total hyphema, and complete ophthalmoplegia suggestive of orbital apex syndrome...
December 21, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28005810/a-rare-patient-with-orbital-apex-syndrome-anterior-uveitis-and-necrotizing-scleritis-due-to-herpes-zoster-ophthalmicus
#7
Erdinc Aydin, Melike Balikoglu-Yilmaz, Seher Saritepe Imre, Feray Koc, Levent Kazanci, Arif Taylan Ozturk
The purpose of this study was to describe a patient of orbital apex syndrome, anterior uveitis, secondary glaucoma, corneal dellen, and necrotizing scleritis following an attack of herpes zoster ophthalmicus, and the placement of a pericardial patch graft. A 64-year-old male patient with blepharoptosis of his right eye and multiple vesicles on the forehead, nose and cheeks, limitation on all gazes, blepharoptosis, and exophthalmia was eventually diagnosed with ophthalmic zona with orbital apex syndrome. After the treatment with systemic antiviral and steroid, there was complete recovery of the unilateral vesicular eruption, ophthalmoplegia, and ptosis at the third month follow-up...
November 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27932889/alveolar-rhabdomyosarcoma-of-the-sphenoid-sinus-mimicking-optic-neuritis-presenting-with-intermittent-visual-loss-in-an-adult
#8
Wendong Liu, Libin Jiang, Yulan Jin, Bentao Yang, Timothy Yy Lai
A 23-year-old male with intermittent visual loss in his left eye for 4 months was originally treated as optic neuritis elsewhere. Upon presentation to our hospital (Beijing Tongren Hospital), his left eye visual acuity was reduced to hand motion at face. The left eye ocular motility was limited in upgaze, downgaze, adduction, and abduction. Computed tomography and magnetic resonance imaging revealed lesions in the sphenoid and ethmoid sinuses, orbital apex and carvernous sinus invading adjacent extraocular muscles...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27928401/idiopathic-acquired-temporal-wedge-visual-field-defects
#9
Michael J Gilhooley, Clare L Fraser, Sui Wong, Simon J Hickman, Gordon T Plant
Our aim is to report 13 unusual cases of acquired, temporal sectoral scotomas. Such stationary "wedge" field defects have been reported previously in cases of presumed congenital nasal hypoplasia of the optic disc and as a complication of vitreoretinal surgery. To our knowledge, the literature provides no reports of similar defects occurring spontaneously. This is a descriptive clinical case series of 13 patients presenting with sub-acute monocular temporal visual field loss. All were clinically assessed and investigated with Goldmann perimetry, automated Humphrey visual fields, retinal optical coherence tomography, orbital ultrasound, and standard and multi-focal electroretinography...
August 2016: Neuro-ophthalmology
https://www.readbyqxmd.com/read/27928390/isolated-oculomotor-nerve-palsy-due-to-metastasis-of-prostatic-cancer-to-the-cavernous-sinus
#10
Yuki Asano, Keiko Takahashi, Hiromasa Tsuda, Mariko Takagi, Fumi Kodaka, Yosuke Yamada
A 69-year-old man with prostatic cancer under palliative care developed isolated right-sided oculomotor nerve palsy with pupillary impairment and persistent ocular pain. Cranial magnetic resonance imaging demonstrated metastasis of prostatic cancer to the right-sided cavernous sinus and orbital apex. In the English language literature, there are only six reported cases of isolated oculomotor nerve palsy secondary to prostatic cancer. In all cases, although there was metastatic lesion in the vicinity of the cavernous sinus, ocular pain did not develop...
April 2016: Neuro-ophthalmology
https://www.readbyqxmd.com/read/27922969/orbital-morphometry-a-computed-tomography-analysis
#11
Jaswinder Singh, Roselinda Ab Rahman, Zainul Ahmad Rajion, Johari Abdullah, Irfan Mohamad
INTRODUCTION: The human orbit is a complex anatomic region, which plays predominant role in the evaluation of craniofacial complex. A thorough understanding of the relationship of the distance from orbital rim to the important vital structures of the orbital apex is required for the surgeon to perform safe and effective surgery. OBJECTIVES: To evaluate and compare the depth and distances from various points of the orbital rim to the fissures and foramina of the orbital apex between genders in the local population...
January 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27898604/long-term-symptom-specific-outcomes-for-patients-with-petrous-apex-cholesterol-granulomas-surgery-versus-observation
#12
Shawn M Stevens, Amy Manning, Myles L Pensak, Ravi N Samy
OBJECTIVE: Review long-term symptom-specific outcomes for petrous apex cholesterol granulomas (PACG). STUDY DESIGN: Retrospective review. SETTING: Tertiary center. PATIENTS: Adults with PACG were assessed from 1998 to 2015. INTERVENTION(S): Symptomatic patients were stratified into surgical and observation subgroups. MAIN OUTCOME MEASURE(S): Resolution rates of individual symptoms and chief complaints were assessed as was the impact of surgical approach and stent usage on symptom-specific outcomes...
February 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/27861475/-rhino-orbital-mucormycosis-cohort-study-of-its-treatment-according-disease-extent-and-reversion-of-its-pathophysiology
#13
Héctor Manuel Prado-Calleros, Germán Fajardo-Dolci, Olga Plowes-Hernández, Carlos Jiménez-Gutiérrez
Mucormycosis is a lethal opportunistic fungal infection, described mostly in immunocompromised patients. A comparative cohort study was conducted to compare the evolution of the study group patients with rhino-orbital mucormycosis, in which a therapeutic protocol was instituted, in which the pterygomaxillary fossa is systematically surgically approached and orbital exenteration is performed or not based on the spreading of the infection to the orbital apex or the orbital fissure, with a historical group where these criteria were not applied...
November 2016: Gaceta Médica de México
https://www.readbyqxmd.com/read/27848082/quantitative-analysis-of-the-trajectory-of-simulated-basilar-apex-aneurysms-through-the-internal-carotid-artery-to-assess-the-need-for-an-orbitozygomatic-approach
#14
Yasushi Motoyama, Yasuo Hironaka, Fumihiko Nishimura, Pritam Gurung, Ryota Sasaki, Yasuhiro Takeshima, Ryosuke Matsuda, Kentaro Tamura, Ichiro Nakagawa, Young-Su Park, Hiroyuki Nakase
BACKGROUND: The aim of this study was to identify the correlation between the location of the internal carotid artery (ICA) and the need for an orbitozygomatic approach (OZA) when approaching a basilar apex (BX) aneurysm. MATERIALS AND METHODS: By imaging the virtual trajectory to access the basilar artery (BA) through the ICA, the correlations among the height of the BX, the height and lateral breadth of the bifurcation of the ICA, and the need for removal of the orbital rim or zygomatic arch were investigated using three-dimensional computed tomography angiography (3DCTA) data of approximately 80 random samples not limited to BX aneurysms...
January 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/27847741/retiform-hemangioendothelioma-in-the-infratemporal-fossa-and-buccal-area-a-case-report-and-literature-review
#15
Il-Kyu Kim, Hyun-Young Cho, Bum-Sang Jung, Sang-Pill Pae, Hyun-Woo Cho, Ji-Hoon Seo, Seung-Hoon Park
We report a case of retiform hemangioendothelioma (RH) located in the infratemporal fossa and buccal area in a 13-year-old Korean boy. The tumor originated from the sphenoid bone of the infratemporal fossa area and spread into the cavernous sinus, orbital apex, and retro-nasal area with bone destruction of the pterygoid process. Tumor resection was conducted via Le Fort I osteotomy and partial maxillectomy to approach the infratemporal fossa and retro-nasal area. The diagnosis of RH was confirmed after surgery...
October 2016: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/27811631/congenital-paradoxical-lower-eyelid-retraction-with-upgaze-due-to-an-anomalous-extraocular-muscle
#16
Daniel R Richardson, Laura A Gadzala, Dean J Bonsall, Jeffery P Hogg, H James Williams, John Nguyen
Congenital anomalous orbital structures are rare and associated with strabismus, globe retraction, and dystopia. The authors present a case of congenital paradoxical right lower eyelid retraction with upgaze due to an anomalous extraocular muscle in a 17-year-old, healthy, female patient. Orbital computed tomography showed an intraconal, inferolateral soft-tissue band extending from the orbital apex to the inferior oblique muscle and lower eyelid. There was resolution of lower eyelid retraction and exposure symptoms after resection of the anterior portion of the fibromuscular band from the lower eyelid retractors and eyelid elevation with ear cartilage...
November 2, 2016: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27803876/visual-function-alterations-in-cavernous-hemangioma-of-the-orbital-apex-after-surgery
#17
Kang Xue, Min Wang, Jiang Qian
No abstract text is available yet for this article.
2016: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/27801772/cranial-nerve-vi-palsy-as-the-main-clinical-manifestation-of-neurosarcoidosis
#18
Zaid A Al-Qudah, Hussam A Yacoub, Nizar Souayah
INTRODUCTION: Sarcoidosis is a chronic, systemic, inflammatory disorder that is characterized by the formation of noncaseating granulomas. Patients may present with cranial nerve palsy, paresthesia, paresis, pyramidal signs, progressive cognitive decline, urinary retention, seizures, or hypothalamic-pituitary syndrome. Although the diagnosis of neurosarcoidosis can be challenging, neurological manifestations of sarcoidosis occur more frequently than previously described. CASE REPORT: A 23-year-old African American man presented to our emergency department with diplopia, which was worsened on left horizontal gaze...
November 2016: Neurologist
https://www.readbyqxmd.com/read/27762178/role-of-targeted-magnetic-resonance-imaging-sequences-in-the-surgical-management-of-anterior-skull-base-pathology
#19
S Chawla, J Bowman, M Gandhi, B Panizza
BACKGROUND: The skull base is a highly complex anatomical region that provides passage for important nerves and vessels as they course into and out of the cranial cavity. Key to the management of pathology in this region is a thorough understanding of the anatomy, with its variations, and the relationship of various neurovascular structures to the pathology in question. Targeted high-resolution magnetic resonance imaging on high field strength magnets can enable the skull base surgeon to understand this intricate relationship and deal with the pathology from a position of relative advantage...
January 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/27749874/highly-efficient-singular-surface-plasmon-generation-by-achiral-apertures
#20
Quanbo Jiang, Aline Pham, Serge Huant, Joel Bellessa, Cyriaque Genet, Aurélien Drezet
We report a highly efficient generation of singular surface plasmon (SP) fields by an achiral plasmonic structure consisting of Λ-shaped apertures. Our quantitative analysis, based on leakage radiation microscopy (LRM), demonstrates that the induced spin-orbit coupling can be tuned by adjusting the apex angle of the Λ-shaped aperture. Specifically, the array of Λ-shaped apertures with the apex angle 60° is shown to give rise to the directional coupling efficiency. The ring of Λ-shaped apertures with the apex angle 60° was found to generate the maximum extinction ratio (ER=11) for the SP singularities between two different polarization states...
October 1, 2016: Optics Letters
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