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Orbital apex

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https://www.readbyqxmd.com/read/28417054/three-dimensional-and-topographic-relationships-between-the-orbital-margins-with-reference-to-assessment-of-eyeball-protrusion
#1
Kang-Jae Shin, Shin-Hyo Lee, Ki-Seok Koh, Wu-Chul Song
This study investigated the topographic relationships among the eyeball and four orbital margins with the aim of identifying the correlation between orbital geometry and eyeball protrusion in Koreans. Three-dimensional (3D) volume rendering of the face was performed using serial computed-tomography images of 141 Koreans, and several landmarks on the bony orbit and the cornea were directly marked on the 3D volumes. The anterior-posterior distances from the apex of the cornea to each orbital margin and between the orbital margins were measured in both eyes...
March 2017: Anatomy & Cell Biology
https://www.readbyqxmd.com/read/28416422/-penetrating-air-gun-pellet-into-the-orbital-apex
#2
Rodolfo Belmonte-Caro, Alberto Garcia-Perla-Garcia, Jose Romero-Arce, Pedro Infante-Cossio
A foreign body penetrating into the intraconal orbital compartment poses a surgical challenge because of its deep location behind the globe and near the optic nerve. We present a case of an air gun pellet lodged into the orbital apex, which was removed via superolateral orbitotomy through coronal incision. This additional craniofacial technique is a safe procedure to access the lateral aspect of the intraconal compartment in the unusual event of having to remove an orbital foreign body.
April 14, 2017: Neurocirugía
https://www.readbyqxmd.com/read/28390122/orbital-apex-syndrome-affecting-head-and-neck-cancer-patients-a-case-series
#3
A-C Prado-Ribeiro, A-C Luiz, M-A Montezuma, M-P Mak, A-R Santos-Silva, T-B Brandão
BACKGROUND: Orbital apex syndrome (OAS) is a complex and uncommon disorder that typically damages multiple cranial nerves in association with optic nerve dysfunction. OAS is associated with several different pathologies, however; only a few cases have been reported in association with head and neck cancer (HNC) so far. MATERIAL AND METHODS: A case series of HNC patients diagnosed with OAS is described including clinicopathological data, image findings, and disease outcome...
April 8, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28372859/the-wedge-sign-an-imaging-sign-for-aggressive-lacrimal-gland-disease
#4
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/28348632/primary-ocular-adnexal-extranodal-marginal-zone-mucosa-associated-lymphoid-tissue-malt-lymphoma-presenting-as-orbital-apex-syndrome
#5
Carlen A Yuen, John H Pula, Milap Mehta
A 75-year-old female with a past medical history significant for prior stroke and atrial fibrillation presented with acute onset of orbital apex syndrome with chemosis and periorbital ecchymosis. Following initial treatment to relieve intraocular pressure, she began spontaneously haemorrhaging retro-orbitally. Preliminary investigation with neuroimaging demonstrated a left orbital mass with extension into the orbital apex. A provisional diagnosis of cavernous haemangioma was made. She was treated with transorbital resection of the orbital mass...
April 2017: Neuro-ophthalmology
https://www.readbyqxmd.com/read/28320694/rectus-muscle-excyclorotation-and-v-pattern-strabismus-a-quantitative-appraisal-of-clinical-relevance-in-syndromic-craniosynostosis
#6
Linda R Dagi, Sarah MacKinnon, David Zurakowski, Sanjay P Prabhu
PURPOSE: V-pattern strabismus observed with syndromic craniosynostosis has been attributed to disparate causes. We compared severity of V pattern with degree of excyclorotation of rectus muscles to appraise significance of this proposed aetiology. METHODS: 43 patients with Apert, Crouzon or Pfeiffer syndrome referred to Boston Children's Hospital Department of Ophthalmology were identified. 28 met inclusion criteria for retrospective cohort study, specifically: (1) sensorimotor measurements in minimum of seven cardinal gazes, (2) quantified fundus torsion and (3) orbital CT imaging sufficient to measure rectus muscle cyclorotation in coronal and quasicoronal planes, posteriorly (near orbital apex) and anteriorly (near pulleys)...
March 20, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28299014/deep-orbital-dermoid-cyst-bulging-into-the-superior-orbital-fissure-clinical-presentation-and-management
#7
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/28299013/tolosa-hunt-syndrome-demonstrated-by-constructive-interference-steady-state-magnetic-resonance-imaging
#8
Nisar A Wani, Majid Jehangir, Parveen A Lone
PURPOSE: To highlight the role of constructive interference steady state (CISS) magnetic resonance imaging (MRI) in the diagnosis of Tolosa-Hunt Syndrome (THS). CASE REPORT: We describe a case of THS in a 55-year-old woman presenting with left painful opthalmoplegia that was diagnosed by CISS MRI. Patient responded to steroid treatment and the lesion resolved. CONCLUSION: Imaging with MRI can help in making the diagnosis of THS by demonstrating an enhancing soft tissue lesion in the cavernous sinus and orbital apex resolving with steroids...
January 2017: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/28296982/management-of-extraoral-complications-in-a-patient-treated-with-four-zygomatic-implants
#9
Andrew Dawood, Nicholas Kalavresos
This article details the significant complications associated with treatment of a patient who underwent maxillary reconstruction based entirely on zygomatic implants. The use of zygomatic implants is becoming increasingly widespread, and treatment has been shown to be predictable and generally free of surgical complications. However, extending from the maxillary alveolus, alongside or through the maxillary antrum, toward the zygoma or orbital rim, these long implants have the potential to create a range of complications that may be more serious than those encountered with conventional dental implants...
March 15, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28260625/cavernous-sinus-syndrome-a-prospective-study-of-73-cases-at-a-tertiary-care-centre-in-northern-india
#10
S Bhatkar, M K Goyal, A Takkar, K K Mukherjee, P Singh, R Singh, V Lal
OBJECTIVES: To study the clinical and etiological profile of patients with cavernous sinus syndrome (CSS) and identify factors which could determine the etiology and influence the outcome of these patients. PATIENTS AND METHODS: This prospective observational study included 73 consecutive patients satisfying the criteria of CSS (i.e. involvement of any 2 of the 3rd, 4th, 5th and 6th cranial nerves or any one of them with radiological evidence of cavernous sinus involvement)...
April 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28258179/extraskeletal-orbital-mesenchymal-chondrosarcoma-surgical-approach-and-mini-review
#11
REVIEW
Ashish Jakhetiya, Nootan Kumar Shukla, Dillip Muduly, Shashank S Kale
Extraskeletal orbital mesenchymal chondrosarcoma (MC) is an extremely rare and highly aggressive tumour. It has characteristic radiological features and pathognomic histological biphasic pattern. Radical resection with negative margins is the mainstay of treatment; role of adjuvant chemotherapy and radiotherapy is yet not well defined. We report a rare case of 18-year-old man who was diagnosed to have orbital MC. He presented with locally advanced disease with no vision in the affected eye. He underwent right orbital exenteration; a transcranial intradural approach was used to divide the optic nerve, and the temporalis muscle flap was utilised to fill the exenterated orbit...
March 3, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28254599/invasive-orbital-apex-aspergillosis-with-mycotic-aneurysm-formation-and-subarachnoid-hemorrhage-in-immunocompetent-patients
#12
Saleh S Baeesa, Mohamad Bakhaidar, Naushad A B Ahamed, Tariq A Madani
BACKGROUND: Invasive orbital apex aspergillosis (IOAA) is an aggressive form of aspergillus infection that usually affects immunocompromised patients. It can cause orbital apex syndrome and, if not treated promptly, may progress rapidly causing fatal complications. Subarachnoid hemorrhage (SAH) secondary to ruptured mycotic aneurysms is a very rare complication of invasive aspergillosis. We aim to describe our management and the outcome of six immunocompetent patients with IOAA with subsequent SAH secondary to ruptured mycotic aneurysms...
February 27, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28237946/orbital-apex-syndrome-as-a-complication-of-herpes-zoster-ophthalmicus
#13
Anjali Chandrasekharan, Uppal Gandhi, Akshay Badakere, Virender Sangwan
Orbital apex syndrome is a rare neuro-ophthalmic manifestation of herpes zoster virus infection. We report one such case with favourable outcome in an immunocompetent patient. A 60-year-old woman presented with rash in the dermatome of the left ophthalmic nerve (V1), followed by sudden loss of vision with complete left-sided external and internal ophthalmoplegia. MRI of brain and orbits with contrast revealed optic perineuritis and myositis without intracranial involvement confirming the diagnosis of orbital apex syndrome...
February 24, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28152321/a-case-report-of-rim-enhancing-lesion-at-the-orbital-apex
#14
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 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
#15
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
#16
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...
April 1, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28099232/keratocystic-odontogenic-tumor-involving-the-orbital-apex
#17
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
#18
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
#19
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
#20
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
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