12,799 results match your criteria Orbit Anatomy


Computed Tomography Description of the Uncinate Process Angulation in Patients With Cystic Fibrosis and Comparison With Primary Ciliary Dyskinesia, Nasal Polyposis, and Controls.

Ear Nose Throat J 2019 Feb 7;98(2):89-93. Epub 2019 Feb 7.

1 Ear Nose and Throat Department and Cystic Fibrosis Centre, Intercommunal Hospital of Créteil, Paris, France.

Background:: There is a medial bulging of the lateral nasal wall in patients with cystic fibrosis (CF).

Aims:: Uncinate process (UP) angulation measurements in patients and controls to objectify this bulging.

Materials And Methods:: Thirty CF, 17 primary ciliary dyskinesia (PCD), 13 chronic rhinosinusitis with polyps (CRSwp), and 30 controls were included. Read More

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http://dx.doi.org/10.1177/0145561319828645DOI Listing
February 2019

Free-Flap Reconstruction of Skull Base and Orbital Defects.

Semin Plast Surg 2019 Feb 8;33(1):72-77. Epub 2019 Mar 8.

Department of Facial Plastic and Reconstructive Surgery, Otolaryngology and Facial Plastic Surgery Associates, Fort Worth, Texas.

Orbital and anterior skull base defects present a significant challenge for reconstruction due to the complexity of the anatomy and the need for separation of intracranial and extracranial contents in this area. While endoscopic techniques have revolutionized the treatment of many anterior skull base defects, microvascular free tissue transfer is a viable option for large volume defects not suitable for traditional open approaches or for cases where endoscopic techniques have failed. The various free tissue transfer techniques for anterior skull base and orbit, as well as the advantages and disadvantages, are reviewed. Read More

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http://www.thieme-connect.de/DOI/DOI?10.1055/s-0039-1677881
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http://dx.doi.org/10.1055/s-0039-1677881DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6408239PMC
February 2019
1 Read

Taking a look into the orbit of mammalian carnivorans.

J Anat 2019 Mar 12. Epub 2019 Mar 12.

Departamento de Ecología y Geología, Facultad de Ciencias, Universidad de Málaga, Málaga, Spain.

In this study, we explore the relationship between orbit anatomy and different ecological factors in carnivorous mammals from a phylogenetic perspective. We calculated the frontation (α), convergence (β), and orbitotemporal (Ω) angles of the orbit from 3D coordinates of anatomical landmarks in a wide sample of carnivores with different kinds of visual strategy (i.e. Read More

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http://dx.doi.org/10.1111/joa.12953DOI Listing

Pediatric Diffuse Large B-Cell Lymphoma of the Frontal Sinus: A Case Report.

Cleft Palate Craniofac J 2019 Mar 5:1055665619831165. Epub 2019 Mar 5.

2 Department of Craniofacial and Pediatric Plastic Surgery, Dell Children's Medical Center of Central Texas, The University of Texas at Austin Dell Medical School, Austin, TX, USA.

An 11-year-old male presented with right proptosis, bulbar conjunctivitis, and diplopia. Computerized tomography (CT) and magnetic resonance imaging revealed an enhancing mass involving the superio-medial orbit, ethmoids, frontal sinus, and anterior cranial fossa with skull base destruction. Diffuse large B-cell lymphoma was diagnosed via CT-guided biopsy. Read More

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http://dx.doi.org/10.1177/1055665619831165DOI Listing
March 2019
2 Reads

Cranial nerves: morphology and clinical relevance.

Anat Rec (Hoboken) 2019 Feb 27. Epub 2019 Feb 27.

Departamento de Anatomía y Embriología, Facultad de Medicina, Universidad Complutense de Madrid, 28040 Madrid, Spain.

This Special Issue entitled "Cranial Nerves: phylogeny, ontogeny, morphology and clinical significance" has been divided into two consecutive volumes. This second volume is devoted to morphology and clinical relevance. Articles in this volume examine these topics from a macroscopic point of view and with a surgical interest. Read More

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http://dx.doi.org/10.1002/ar.24106DOI Listing
February 2019

Adenoid cystic carcinoma presenting with bilateral orbital extension from the soft palate.

Digit J Ophthalmol 2018 18;24(1):1-5. Epub 2018 Feb 18.

Department of Ophthalmology, Rhode Island Hospital, Providence, Rhode Island.

Adenoid cystic carcinoma (ACC) is a rare neoplasm of secretory epithelium that most commonly occurs in the fifth and sixth decades of life. It is characterized by high recurrence rates and poor response to chemotherapy, In the orbit, ACC usually presents as a lacrimal gland mass. We describe the rare case of a 70-year-old woman who presented with pain during mastication and bilateral facial numbness in the cranial nerve V2 distribution. Read More

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http://dx.doi.org/10.5693/djo.02.2018.01.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6380254PMC
March 2019
4 Reads

Vascular malformations of the orbit (lymphatic, venous, arteriovenous): Diagnosis, management and results.

J Craniomaxillofac Surg 2018 Sep 20. Epub 2018 Sep 20.

University of Parma, Department of Maxillo Facial Surgery (Head: Prof. Enrico Sesenna), Italy.

Vascular malformations are often found inside the orbit. Isolated venous malformations (frequently misnamed as cavernous hemangiomas) are the most frequent among these. However, also lymphatic and arteriovenous malformations can affect the orbit. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S10105182183076
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http://dx.doi.org/10.1016/j.jcms.2018.09.009DOI Listing
September 2018
5 Reads

Association of anthropometric markers with globe position: A population-based MRI study.

PLoS One 2019 7;14(2):e0211817. Epub 2019 Feb 7.

Department of Ophthalmology, University Medicine Greifswald, Greifswald, Mecklenburg-Western Pomerania, Germany.

Purpose: Exophthalmometry is a common examination in ophthalmology. For example it is relevant for diagnosis or follow-up of thyroid eye disease. However, exophthalmometry is affected by several factors such as ethnicity, sex and age. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0211817PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6366780PMC
February 2019
1 Read

Traumatic Falls in the Pediatric Population: Facial Fracture Patterns Observed in a Leading Cause of Childhood Injury.

Ann Plast Surg 2019 Apr;82(4S Suppl 3):S195-S198

University of Mississippi Medical Center, Jackson, MS.

Purpose: Falls are a leading cause of nonfatal injury in the pediatric population, resulting in numerous hospitalizations. Children may not have fully developed reflexive and balancing abilities, rendering them more susceptible to traumatic falls. Here the authors present their findings regarding patterns of facial fracture and concomitant injury seen in the pediatric population secondary to falls. Read More

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http://dx.doi.org/10.1097/SAP.0000000000001861DOI Listing
April 2019
1 Read

Computed tomographic dimensions of the normal adult equine eye.

Vet Ophthalmol 2019 Feb 4. Epub 2019 Feb 4.

The Royal Veterinary College, Hertfordshire, UK.

There are limited data on whether the dimensions of the equine eye and its internal structures change with bodyweight in horses. The aim of this study was to identify whether the size of the equine eye and its individual structures varied in a predictable manner with bodyweight, and to examine the reliability of computed tomography (CT) scans in the measurement of the equine eye. Ninety horses which had undergone CT examination of the head for non-ocular disease were included. Read More

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http://dx.doi.org/10.1111/vop.12636DOI Listing
February 2019
1 Read

Ultrasound-guided posterior extraconal block in the dog: anatomical study in cadavers.

Vet Anaesth Analg 2019 Mar 11;46(2):246-250. Epub 2018 Oct 11.

The Royal Veterinary College, Hatfield, UK.

Objective: To describe a novel ultrasound-guided posterior extraconal block in the dog.

Study Design: Prospective experimental cadaveric study.

Animals: A total of 13 Beagle Cross cadaver heads. Read More

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http://dx.doi.org/10.1016/j.vaa.2018.09.045DOI Listing
March 2019
1 Read

Intraoperative verification of resection margins of maxillary malignancies by cone-beam computed tomography.

Br J Oral Maxillofac Surg 2019 Feb 31;57(2):174-181. Epub 2019 Jan 31.

Department of Head and Neck Oncology and Surgery, The Netherland Cancer Institute/Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands. Electronic address:

Resection of maxillary cancer often results in incomplete excision because of the tumour's proximity to important structures such as the orbit. To deal with this problem we prospectively investigated the feasibility of intraoperative imaging during maxillectomy to verify the planned resection margins. In total, six patients diagnosed with maxillary cancer listed for maxillectomy were included, irrespective of the histological type of tumour. Read More

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http://dx.doi.org/10.1016/j.bjoms.2019.01.007DOI Listing
February 2019

Bone wax migrates to the orbit in a patient with a frontal sinus abnormality: a case report.

BMC Ophthalmol 2019 Jan 24;19(1):29. Epub 2019 Jan 24.

Department of Ophthalmology, the 2nd Xiangya Hospital, Central South University, Changsha, 410011, Hunan Province, China.

Background: Bone wax is the most widely used hemostatic bone sealant because of its availability, ease of use, immediate action, and minimal adverse effects. Several complications have been reported to be associated with the use of bone wax, such as infection, osteohypertrophy, pain, granuloma formation, allergic reaction, and thrombosis. Here, we present a rare complication, namely, bone wax migration, which developed after a craniotomy on a patient who had a frontal sinus abnormality. Read More

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http://dx.doi.org/10.1186/s12886-019-1037-xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6345031PMC
January 2019
2 Reads

Orbital paraganglioma in a dog.

Tierarztl Prax Ausg K Kleintiere Heimtiere 2018 Dec 18;46(6):410-415. Epub 2019 Jan 18.

A 10-year-old Rottweiler presented with right-sided moderately painful exophthalmia, blindness, absence of dazzle and pupillary light reflexes, a swollen optic nerve head and ventrolateral indentation of the globe. On magnetic resonance imaging, a 3 x 2 x 2 cm mass with a fluid filled center and contrast-enhancing periphery was noted posteriolateral of the globe. Orbital ultrasound was used for a guided fine needle aspirate of the mass. Read More

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http://dx.doi.org/10.1055/s-0038-1677406DOI Listing
December 2018
4 Reads

Interdural course of the ophthalmic artery in the optic canal.

J Neurosurg 2019 Jan 4:1-7. Epub 2019 Jan 4.

1Division of Neurological Surgery and.

OBJECTIVEIn the current neurosurgical and anatomical literature, the intracanalicular segment of the ophthalmic artery (OphA) is usually described to be within the optic nerve dural sheath (ONDS), implying direct contact between the nerve and the artery inside the optic canal. In the present study, the authors sought to clarify the exact relationship between the OphA and ONDS.METHODSTen cadaveric heads were subjected to endoscopic endonasal and transcranial exposures of the OphA in the optic canal (5 for each approach). Read More

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http://dx.doi.org/10.3171/2018.6.JNS18856DOI Listing
January 2019
1 Read

On variational solutions for whole brain serial-section histology using a Sobolev prior in the computational anatomy random orbit model.

PLoS Comput Biol 2018 12 26;14(12):e1006610. Epub 2018 Dec 26.

Center for Imaging Science, Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, USA.

This paper presents a variational framework for dense diffeomorphic atlas-mapping onto high-throughput histology stacks at the 20 μm meso-scale. The observed sections are modelled as Gaussian random fields conditioned on a sequence of unknown section by section rigid motions and unknown diffeomorphic transformation of a three-dimensional atlas. To regularize over the high-dimensionality of our parameter space (which is a product space of the rigid motion dimensions and the diffeomorphism dimensions), the histology stacks are modelled as arising from a first order Sobolev space smoothness prior. Read More

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http://dx.doi.org/10.1371/journal.pcbi.1006610DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6324828PMC
December 2018

Case 39-2018: An 18-Year-Old Man with Diplopia and Proptosis of the Left Eye.

N Engl J Med 2018 12;379(25):2452-2461

From the Departments of Ophthalmology (D.R.L., M.K.Y.) and Radiology (K.L.R.), Massachusetts Eye and Ear, the Departments of Medicine (J.H.S.) and Pathology (A.M.S.), Massachusetts General Hospital, and the Departments of Ophthalmology (D.R.L., M.K.Y.), Radiology (K.L.R.), Medicine (J.H.S.), and Pathology (A.M.S.), Harvard Medical School - all in Boston.

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http://dx.doi.org/10.1056/NEJMcpc1807503DOI Listing
December 2018
2 Reads

Rhabdomyoblastic differentiation in rosai dorfman disease of the orbit in a 12-year-old male.

Niger J Clin Pract 2018 Dec;21(12):1670-1673

Department of Ophthalmology, Federal Teaching Hospital, Abakaliki, Ebonyi State, Nigeria.

Extranodal Rosai-Dorfman disease involving the orbit has been reported severally with extensive discourse on management strategies. However, rhabdomyoblastic differentiation coexisting with the disease is yet unreported. We present the clinical and histopathological features of a 12-year-old boy presenting with both. Read More

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http://dx.doi.org/10.4103/njcp.njcp_262_17DOI Listing
December 2018
10 Reads

Pleomorphic iridociliary adenocarcinoma with metastasis to the cervical lymph node in a chinchilla (Chinchilla lanigera).

J Vet Med Sci 2019 Feb 14;81(2):193-196. Epub 2018 Dec 14.

Laboratory of Pathology, Setsunan University, Osaka 573-0101, Japan.

A tumor had formed in the right eye of a 14-year-old male chinchilla. The black-and-white-colored tumor occupied the entire eye except for the lens and had invaded extensively inside the orbit. Histologically, round, spindle- to polygonal-shaped tumor cells had proliferated in a solid-sheet arrangement. Read More

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http://dx.doi.org/10.1292/jvms.18-0517DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6395198PMC
February 2019

A regression model including fetal orbit measurements to predict parturition in Standardbred mares with normal pregnancy.

Theriogenology 2019 Mar 10;126:153-158. Epub 2018 Dec 10.

Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano Emilia, Bologna, Italy. Electronic address:

In the mare, foaling is a critical unpredictable event due to a wide range of gestational length and the absence of clear signs of impending parturition. To predict foaling, pH, inversion sodium potassium and increase of calcium concentration in mammary secretions are used. The aim of this study was to find how many days are left until parturition knowing mare's age (A) and parity (P) combined with ultrasonographic measurements of the fetal orbit in Standardbred mares with normal pregnancy. Read More

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http://dx.doi.org/10.1016/j.theriogenology.2018.12.020DOI Listing

Bony Orbital Volume Expansion in Thyroid Eye Disease.

Ophthalmic Plast Reconstr Surg 2018 Dec 7. Epub 2018 Dec 7.

Doheny Eye Institute, Division of Orbital and Ophthalmic Plastic Surgery, University of California-Los Angeles, Los Angeles, California, U.S.A.

Purpose: To quantify changes to the bony orbital volume (BOV) in patients with thyroid eye disease (TED) relative to normal controls.

Methods: In this case-control study, all patients affected with TED seen over a 2-year period were screened for study entry. Eligible participants were adults with clinical evidence of TED and CT scans of their orbits obtained during the course of their routine care. Read More

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http://Insights.ovid.com/crossref?an=00002341-900000000-9837
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http://dx.doi.org/10.1097/IOP.0000000000001292DOI Listing
December 2018
25 Reads

The eye of the beholder: orbital metastases from midgut neuroendocrine tumors, a two institution experience.

Cancer Imaging 2018 Dec 6;18(1):47. Epub 2018 Dec 6.

Department of Internal Medicine, Stanford University Medical Center, Stanford, CA, USA.

Background: Metastases to the orbit occur rarely in midgut neuroendocrine tumor (NET) patients with only 20 cases reported to date. Patients typically present with bilateral involvement of the recti muscles and experience symptoms such as diplopia, proptosis, and decreased vision. Although orbital MRI remains the gold standard for imaging orbital disease, many orbital lesions are now detected on somatostatin-receptor (SSTR) based imaging such as 68Ga-DOTATATE PET-CT. Read More

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http://dx.doi.org/10.1186/s40644-018-0181-5DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6282338PMC
December 2018
2 Reads

Basal cell carcinoma and basosquamous carcinoma, two faces of the same condition?

Rom J Morphol Embryol 2018 ;59(3):989-996

Department of Microscopic Morphology, "Victor Babeş" University of Medicine and Pharmacy, Timişoara, Romania; Department of Otorhinolaryngology, "Victor Babeş" University of Medicine and Pharmacy, Timişoara, Romania;

Basal cell carcinoma (BCC) is the most common locally invasive malignant epidermal neoplasm. It is generally a tumor that runs a slow progressive course and can usually be cured by surgery. Basosquamous carcinoma is considered by some authors a rare subtype of BCC, while others describe it as independent tumor with different evolution from BCC. Read More

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January 2019
6 Reads

Mixed (nodular and morpheic) upper eyelid basal cell carcinoma with orbital invasion - histological and clinical features.

Rom J Morphol Embryol 2018 ;59(3):977-983

Department of Plastic Surgery, "Grigore T. Popa" University of Medicine and Pharmacy, Iaşi, Romania;

Basal cell carcinoma (BCC) is the most common type of cancer located in the periocular area. We will present the clinical case of a 63-year-old male patient who was admitted to the 2nd Clinic of Neurosurgery, "Prof. Dr. Read More

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January 2019
7 Reads

A simple method to estimate the linear length of the orbital floor in complex orbital surgery.

J Craniomaxillofac Surg 2019 Jan 9;47(1):185-189. Epub 2018 Nov 9.

OMFS-IMPATH Research Group Department of Imaging and Pathology, (Chairperson: Professor Dr. C. Politis), Belgium; Department of Oral and Maxillofacial Surgery, Hasselt University, Diepenbeek, Belgium.

Background: The orbital floor (OrF) and infraorbital rim (IOR) repair in cases of complete destruction is challenging mainly due to the fact that the defect length cannot be measured. The aim of the current study is to develop a method of calculating the Orf length by using the gender and the lengths of the medial, superior and lateral orbital walls (OrW) of the same orbit.

Material And Methods: Ninety-seven (59 male and 38 female) European adult dry skulls were classified according to age: 20-39, 40-59 and 60 years and above. Read More

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http://dx.doi.org/10.1016/j.jcms.2018.11.001DOI Listing
January 2019
2 Reads

Acinic cell carcinoma of parotid gland with cavernous sinus metastasis: A case report.

J Cancer Res Ther 2018 Oct-Dec;14(6):1428-1430

Department of Medical Oncology, All India Institute of Medical Sciences, New Delhi, India.

Acinic cell carcinoma (AciCC) is a low-grade malignancy which rarely metastasizes to bone or cavernous sinuses. A 62-year-old male patient, previously treated for AciCC of right parotid with surgery and local radiotherapy, presented 10 years later with progressive visual impairment and restriction of ocular movements. Magnetic resonance imaging of the head and orbit showed an expansile lobulated mass with heterogeneous signal intensity in bilateral cavernous sinus with encasement of the internal carotid artery on both sides. Read More

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http://dx.doi.org/10.4103/0973-1482.192850DOI Listing
February 2019
17 Reads

Synchronous orbital and mandibular metastases from squamous cell carcinoma of lung as initial disease presentation in a young female: First report of a rare occurrence.

J Cancer Res Ther 2018 Oct-Dec;14(6):1425-1427

Department of Radiation Oncology, All India Institute of Medical Sciences, New Delhi, India.

Metastatic tumor to orbit or mandible as initial presentation is rare. According to the available literature, majority of these described cases had its origin from lung and breast. Adenocarcinoma is the most commonly described histology. Read More

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http://www.cancerjournal.net/preprintarticle.asp?id=199429
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http://dx.doi.org/10.4103/0973-1482.199429DOI Listing
February 2019
6 Reads

Current Data on Effects of Long-Term Missions on the International Space Station on Skin Physiological Parameters.

Skin Pharmacol Physiol 2019 28;32(1):43-51. Epub 2018 Nov 28.

DermaTronnier, Institute for Experimental Dermatology, Witten/Herdecke University, Witten, Germany.

Background: Skin reaction to spaceflight has not really been studied yet, although the skin has a very important barrier function to protect the body and can contribute to a more general understanding of physiology. It is proposed here to make a more thorough investigation of the skin during long-term spaceflight, using noninvasive techniques.

Aims: The aim of the present Skin-B study is to investigate the kinetics and range of possible skin modifications during long-duration spaceflights and their recovery. Read More

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http://dx.doi.org/10.1159/000494688DOI Listing
January 2019

Self-Reported Skin Changes by a Selected Number of Astronauts after Long-Duration Mission on ISS as Part of the Skin B Project.

Skin Pharmacol Physiol 2019 28;32(1):52-57. Epub 2018 Nov 28.

DermaTronnier, Institute for Experimental Dermatology, Witten/Herdecke University, Witten, Germany.

Background: One of the most challenging and important factors of manned space missions is to keep astronauts healthy on orbit. In a study on 46 ISS crew members who were on 6-month (average) missions, skin rashes were the most self-reported event. Furthermore, among notable events, 40% were classified as skin rashes/hypersensitivities. Read More

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http://dx.doi.org/10.1159/000494689DOI Listing
January 2019
3 Reads

Eyelash hair transplantation with strip composite eyebrow graft: an enhancing technique in tarsoconjunctival flap eyelid reconstruction procedure.

Orbit 2018 Nov 27:1-4. Epub 2018 Nov 27.

a Oculoplastics Department , Instituto de Oftalmología Fundación Conde de Valenciana , Mexico City , Mexico.

Purpose: To describe and evaluate the eyelash transplantation with strip composite eyebrow graft to improve eyelid anatomy in tarsoconjunctival flap eyelid reconstruction procedure.

Methods: Twenty two patients with eyelid tumors managed by local excision and reconstruction using tarsoconjunctival flap reconstruction procedure were included. Eyelash graft was performed during flap division by harvesting a graft from the eyebrow and creating a recipient pocket in the receptor eyelid. Read More

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http://dx.doi.org/10.1080/01676830.2018.1546324DOI Listing
November 2018
1 Read

Central Nervous System Responses to Simulated Galactic Cosmic Rays.

Int J Mol Sci 2018 Nov 20;19(11). Epub 2018 Nov 20.

Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA 94035, USA.

In preparation for lunar and Mars missions it is essential to consider the challenges to human health that are posed by long-duration deep space habitation via multiple stressors, including ionizing radiation, gravitational changes during flight and in orbit, other aspects of the space environment such as high level of carbon dioxide, and psychological stress from confined environment and social isolation. It remains unclear how these stressors individually or in combination impact the central nervous system (CNS), presenting potential obstacles for astronauts engaged in deep space travel. Although human spaceflight research only within the last decade has started to include the effects of radiation transmitted by galactic cosmic rays to the CNS, radiation is currently considered to be one of the main stressors for prolonged spaceflight and deep space exploration. Read More

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http://dx.doi.org/10.3390/ijms19113669DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6275046PMC
November 2018
17 Reads

Orbital Arteriovenous Fistula Coexistent with an Arteriovenous Hemangioma: A Rare Occurrence and Review of Literature.

World Neurosurg 2019 Feb 14;122:287-292. Epub 2018 Nov 14.

Department of Neurological Surgery, Juntendo University, Urayasu Hospital, Urayasu, Chiba, Japan.

Background: Orbital arteriovenous fistula (AVF) is a rare entity with only 17 cases reported so far. An arteriovenous hemangioma is a distinct entity of an angioma that most frequently affects the skin. However, to our knowledge, there has not been a case arising in the orbit. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S18788750183254
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http://dx.doi.org/10.1016/j.wneu.2018.11.003DOI Listing
February 2019
14 Reads

Periocular Reconstruction.

Facial Plast Surg Clin North Am 2019 Feb;27(1):105-118

Kellogg Eye Center, Michigan Medicine, 1000 Wall Street, Ann Arbor, MI 48105, USA.

Options for periorbital reconstruction include primary wound closure, local flaps, regional/distant flaps, or full-thickness skin grafts. Optimal aesthetic and functional outcomes are achieved by assessing regional contours, skin type, and facial aesthetic units. Like tissue should replace like tissue; for example, skin with skin, tarsus with tarsus (or equivalent material, eg, hard palate, ear cartilage, or autologous substitute), and conjunctiva with mucous membrane or like substitute (buccal mucous membrane, amniotic membrane). Read More

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https://linkinghub.elsevier.com/retrieve/pii/S10647406183007
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http://dx.doi.org/10.1016/j.fsc.2018.08.011DOI Listing
February 2019
13 Reads

Molecular biomarkers of Graves' ophthalmopathy.

Exp Mol Pathol 2019 02 8;106:1-6. Epub 2018 Nov 8.

Department of Regenerative & Cancer Cell Biology, Albany Medical College, Albany, New York 12208, United States. Electronic address:

Graves' ophthalmopathy (GO), a complication of Graves' disease (GD), is typified by orbital inflammation, ocular tissue expansion and remodeling and, ultimately, fibrosis. Orbital fibroblasts are key effectors of GO pathogenesis exhibiting exaggerated inflammatory and fibroproliferative responses to cytokines released by infiltrating immune cells. Activated orbital fibroblasts also produce inflammatory mediators that contribute to disease progression, facilitate the orbital trafficking of monocytes and macrophages, promote differentiation of matrix-producing myofibroblasts and stimulate accumulation of a hyaluronan-rich stroma, which leads to orbital tissue edema and fibrosis. Read More

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http://dx.doi.org/10.1016/j.yexmp.2018.11.004DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6381289PMC
February 2019
17 Reads

Atypical presentation of a solid-variant orbital aneurysmal bone cyst with a literature review.

Neurochirurgie 2018 Dec 6;64(6):431-433. Epub 2018 Nov 6.

School of Medicine, University of Connecticut, 263, Farmington Avenue, Farmington, Connecticut, 06030, USA; Department of Surgery, Division of Ophthalmology, University of Connecticut Health, 263, Farmington Avenue, Farmington, Connecticut, 06030, USA. Electronic address:

Introduction: Aneurysmal bone cysts (ABCs) are rare, rapidly expansile, benign, vascular lesions capable of causing local bone destruction. The majority of cases present as multi-cystic lytic lesions (with solid-variant ABCs representing<10% of all presentations) of the long bones or vertebrae, rarely occurring in the head/neck region.

Clinical Case: A 44-year-old female presented with nine days of worsening pain, ptosis and proptosis in the right eye. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00283770183031
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http://dx.doi.org/10.1016/j.neuchi.2018.10.001DOI Listing
December 2018
10 Reads

Is This Mine to Keep? Three-dimensional Printing Enables Active, Personalized Learning in Anatomy.

Anat Sci Educ 2018 Nov 8. Epub 2018 Nov 8.

School of Medicine (Optometry), Faculty of Health, Deakin University, Geelong, Victoria, Australia.

Understanding orbital anatomy is important for optometry students, but the learning resources available are often fragile, expensive, and accessible only during scheduled classes. Drawing on a constructivist, personalized approach to learning, this study investigated students' perceptions of an alternative learning resource: a three-dimensional (3D) printed model used in an active learning task. A human skull was three-dimensionally scanned and used to produce a 3D printed model for each student. Read More

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http://doi.wiley.com/10.1002/ase.1840
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http://dx.doi.org/10.1002/ase.1840DOI Listing
November 2018
9 Reads

The Morphology of the Infraorbital Nerve and Foramen in the Presence of an Accessory Infraorbital Foramen.

J Craniofac Surg 2019 Jan;30(1):244-253

Department of Anatomy, Biochemistry and Physiology, John A Burns School of Medicine, University of Hawai'i, Honolulu, HI.

Background: The accessory infraorbital foramen (AIOF) is an anatomical variation associated with the infraorbital foramen (IOF) and nerve (ION). Its occurrence and neural contents have clinical implications regarding failure of loco-regional anesthesia and risk of neural damage during surgical interventions involving the maxillary region. Thus, morphologic characterization of the AIOF and neural contents as well as the spatial relationships to the IOF are potentially useful for optimizing surgical procedures. Read More

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http://Insights.ovid.com/crossref?an=00001665-900000000-9526
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http://dx.doi.org/10.1097/SCS.0000000000004889DOI Listing
January 2019
9 Reads

Compressive optic neuropathy secondary to Ewing sarcoma in the paranasal sinus: A case report.

Medicine (Baltimore) 2018 Nov;97(44):e13027

Department of Ophthalmology.

Rationale: Ewing sarcoma localized in the paranasal sinuses, compressing the optic nerve, is very rare, with no prior case reports PATIENT CONCERNS:: A 68-year-old woman presented with decreased visual acuity in her left eye and paresthesia of the left face. Brain magnetic resonance imaging showed heterogeneously enhancing mass in the left paranasal sinuses with adjacent bone destruction, extending to the extraocular muscles and optic nerve of the left orbit. A biopsy of the nasal cavity confirmed Ewing sarcoma. Read More

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http://dx.doi.org/10.1097/MD.0000000000013027DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6221559PMC
November 2018
6 Reads

Space crews' grey matter shrivels during long stays in orbit.

Authors:

Nature 2018 11;563(7729)

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http://dx.doi.org/10.1038/d41586-018-07163-wDOI Listing
November 2018
10 Reads

Myeloid Sarcoma of the Paranasal Sinuses in a Patient with Acute Myeloid Leukemia.

Tohoku J Exp Med 2018 10;246(2):141-146

Department of Otolaryngology-Head and Neck Surgery, Tohoku University School of Medicine.

Myeloid sarcoma (MS) is an uncommon extramedullary malignant tumor, and often represents a subgroup of acute myeloid leukemia (AML). MS of paranasal sinus origin is extremely rare. We report an uncommon case of sinonasal MS associated with AML, who was successfully treated with hematopoietic stem-cell transplantation. Read More

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https://www.jstage.jst.go.jp/article/tjem/246/2/246_141/_art
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http://dx.doi.org/10.1620/tjem.246.141DOI Listing
October 2018
14 Reads

Primary limbal stem cell transplantation in the surgical management of extensive ocular surface squamous neoplasia involving the limbus.

Indian J Ophthalmol 2018 Nov;66(11):1569-1573

Oculoplasty, Orbit and Ocular Oncology Services, Centre for Sight, Hyderabad, Telangana, India.

Purpose: To determine the role of primary limbal stem cell transplantation (LSCT) in managing extensive ocular surface squamous neoplasia (OSSN) with more than 3 quadrants of limbal involvement to prevent manifestations of limbal stem cell deficiency.

Methods: A multi-center, comparative, and interventional clinical study of cases and historical controls was done. Patients with a limbal mass suggestive of OSSN involving more than 3 quadrants of limbus (> 9 clock hours) and no local, regional or systemic metastasis, who underwent primary surgical excision with or without adjuvant chemotherapy and had a minimum follow-up of 12 months were included in this study. Read More

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http://www.ijo.in/text.asp?2018/66/11/1569/244052
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http://dx.doi.org/10.4103/ijo.IJO_348_18DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6213701PMC
November 2018
1 Read

[Imaging of orbital cellulitis in children: about 56 cases].

Pan Afr Med J 2018 31;30:94. Epub 2018 May 31.

Radiology Departement, Mother and Child's Hospital, Mohammed VI Teaching Center, Medical School of Marrakesh, Cadi Ayad University, Marrakesh, Morocco.

Orbital cellulitis is rare but potentially severe in children. Diagnosis is primarily based on clinical examination and imaging (CT or MRI). This study aims to highlight the role of imaging, in particular CT scan, in the diagnosis and in the treatment of this pathology. Read More

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http://dx.doi.org/10.11604/pamj.2018.30.94.14672DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6191269PMC
October 2018
15 Reads

Endoscopic resection of a huge orbital ethmoidal mucocele masquerading as dacryocystocele.

BMJ Case Rep 2018 Oct 17;2018. Epub 2018 Oct 17.

Otolaryngology, Concord Repatriation General Hospital, Concord, New South Wales, Australia.

Paranasal mucoceles are cystic masses lined with epithelium thought to result from chronic obstruction of an impaired sinus ostia. If sufficiency large, they can cause ophthalmological sequelae including diplopia, visual acuity, globe displacement as well as the rhinological symptoms of facial pain and headache. We present the case of a 57-year-old man who presented with a 1-year history of epiphora and right globe prominence with associated diplopia. Read More

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http://dx.doi.org/10.1136/bcr-2018-226232DOI Listing
October 2018
2 Reads

Characteristics and dimensions of the infraorbital canal: a radiographic analysis using cone beam computed tomography (CBCT).

Surg Radiol Anat 2019 Feb 17;41(2):169-179. Epub 2018 Oct 17.

Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Freiburgstrasse 7, 3010, Bern, Switzerland.

Purpose: To analyze morphological characteristics and dimensions of the infraorbital canal-groove complex using cone beam computed tomography (CBCT), and to evaluate its relationship with adjacent anatomical structures.

Methods: This retrospective study included CBCT scans of 100 patients taken between January and May 2014. Linear measurements of the infraorbital canal (IOC), the infraorbital groove (IOG) and the infraorbital canal-groove complex (IOC/G) were performed. Read More

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http://dx.doi.org/10.1007/s00276-018-2108-zDOI Listing
February 2019
2 Reads

Extraocular Muscles Involvement as the Initial Presentation in Metastatic Breast Cancer.

J Breast Cancer 2018 Sep 20;21(3):339-342. Epub 2018 Sep 20.

Department of Gynaecology, Coimbra University Hospital Centre, Coimbra, Portugal.

Orbital metastasis is a rare event, and metastatic disease affecting the extraocular muscles is an even less frequent complication of solid tumors. Herein, we report an unusual case of ptosis as the initial presentation of an invasive breast cancer. A 68-year-old woman presented with III and VI partial nerve paresis, secondary to a compressive retrobulbar mass. Read More

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http://dx.doi.org/10.4048/jbc.2018.21.e46DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6158159PMC
September 2018
19 Reads

Pterional, Pretemporal, and Orbitozygomatic Approaches: Anatomic and Comparative Study.

World Neurosurg 2019 Jan 26;121:e398-e403. Epub 2018 Sep 26.

Division of Neurological Surgery, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil. Electronic address:

Objective: Although pterional craniotomy and its variants are the most used approaches in neurosurgery, few studies have evaluated their precise indications. We evaluate the pterional (PT), pretemporal (PreT), and orbitozygomatic (OZ) approaches through quantitative measurements of area, linear, and angular exposures of the major intracranial vascular structures.

Methods: Eight fresh, adult cadavers were operated with the PT, followed by the PreT, and ending with the OZ approach. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S18788750183216
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http://dx.doi.org/10.1016/j.wneu.2018.09.120DOI Listing
January 2019
3 Reads