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Dive into the research topics where Bryan Arthurs is active.

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Featured researches published by Bryan Arthurs.


Ophthalmology | 1993

An Association between Hypothyroidism and Primary Open-angle Glaucoma

Kevin D. Smith; Bryan Arthurs; Nabil Saheb

PURPOSE To test the hypothesis that there is an association between hypothyroidism and primary open-angle glaucoma. METHODS The study was conducted in a case-control fashion. Sixty-four patients with primary open-angle glaucoma were evaluated for hypothyroidism by history and by undergoing a thyroid-stimulating hormone immunoradiometric assay. Sixty-four control subjects from the general eye clinic were evaluated in the same manner. Patients found to have elevated thyroid-stimulating hormone immunoradiometric assay were evaluated by an endocrinologist for hypothyroidism. RESULTS Of the primary open-angle glaucoma group, 23.4% had hypothyroidism. A diagnosis was made previously in 12.5% patients, and 10.9% were newly diagnosed. Of the control subjects, 4.7% had hypothyroidism. A diagnosis had been made previously in 1.6% of the control subjects, and 3.1% were newly diagnosed. The difference between the two groups was found to be statistically significant. CONCLUSION A statistically significant association between hypothyroidism and primary open-angle glaucoma is demonstrated. There is a large group (10.9%) of patients with primary open-angle glaucoma with undiagnosed hypothyroidism.


Ophthalmic Plastic and Reconstructive Surgery | 2012

Severe visual loss and orbital infarction following periorbital aesthetic poly-(L)-lactic acid (PLLA) injection.

Steve A. I. Roberts; Bryan Arthurs

Visual loss following esthetic treatment of the face is a rare but devastating iatrogenic complication. The authors report a case of a 43-year-old man with blindness and ophthalmoplegia of the left eye following a treatment of the left periorbital region with the subcutaneous filler poly-(L)-lactic acid. The patients symptoms began immediately following one of the tunneled injections. On presentation, the patient had clear signs of ocular and orbital ischemia. Angiography and further history suggested an embolic orbital infarction as the mechanism of injury. The increased usage of subcutaneous fillers for facial rejuvenation had introduced a small but proven risk of embolization of these viscous materials to the eye and orbit.


Ophthalmology | 1999

Orbital infarction and melting in a patient with systemic lupus erythematosus

Bryan Arthurs; Mourad K. Khalil; Françoise P. Chagnon; Susan Lindley; Duncan P. Anderson; Miguel N. Burnier

OBJECTIVE To present a patient with systemic lupus erythematosus who developed infarction and melting of the orbit secondary to her systemic disease. DESIGN A case report. PARTICIPANT A 61-year-old white woman with a 5-year history of systemic lupus erythematosus. METHODS The patient presented with left orbital pain, limitation of extraocular movements, and a fistula from the ethmoid sinus to the upper eyelid. A detailed examination with computerized tomography, ultrasound, and a comprehensive medical evaluation with laboratory testing was performed. Histopathologic analysis with special stains of the orbital tissues was also performed. RESULTS Histopathologic examination of the biopsy specimens revealed the features of an inflammatory process involving the orbit, similar to a panniculitis. These include a lymphocytic reaction with a predominance of plasma cells, vasculitis with occlusion, and thickening of the vessel walls, necrosis, and hyalinization of fat. CONCLUSION This is a unique case in which infarction and melting of the entire orbital structures occurred in the presence of systemic lupus erythematosus. The underlying disease process is a lupus-related panniculitis. The authors stress that this is a very rare entity and that other diseases should be ruled out before entertaining this diagnosis.


Ophthalmic Plastic and Reconstructive Surgery | 2001

Recurrent orbital inflammation from metastatic orbital carcinoid tumor.

Robert J. Knox; James W. Gigantelli; Bryan Arthurs

Purpose To report an unusual clinical presentation for carcinoid tumor metastatic to the orbit. Methods Two adult patients with metastatic carcinoid tumor and unilateral orbital masses are described. Results Both patients sought treatment for acute unilateral orbital inflammation. Neuroimaging revealed orbital metastases adjacent to the inflamed adnexal tissue. Based on each patient’s description of similar, prior, untreated episodes, minimal medical management was initiated. Resolution of the inflammatory signs was spontaneous in one case and assisted by pulsed, systemic corticosteroids in the second case. Compressive neuropathic vision loss occurred 11 months later in the second case. Conclusions Carcinoid tumor metastatic to the orbit may manifest as recurrent orbital and ocular adnexal inflammation. These signs differ from systemic carcinoid syndrome in that they are unilateral, limited to only the orbital and ocular adnexal soft tissues, and resolve over days. Clinicians must carefully differentiate this manifestation from that of tumor necrosis, adnexal infection, or orbital outlet obstruction. This presentation may result from the spontaneous release of local inflammatory mediators intrinsic to the orbital tumor.


Journal of Medical Case Reports | 2007

Epithelioid hemangioma (angiolymphoid hyperplasia with eosinophilia) of the orbit: a case report

Bruno F. Fernandes; Abdullah Al-Mujaini; Tina Petrogiannis-Haliotis; Abdullah Al-Kandari; Bryan Arthurs; Miguel N. Burnier

BackgroundAngiolymphoid hyperplasia with eosinophilia (ALHE) and Kimuras Disease (KD) share many clinical and histopathological features. Although they were once considered different stages of the same disease, they are now known to represent separate entities. Recently, ALHE is being called epithelioid hemangioma (EH), a term that better describes the possible neoplastic nature of the entity.Case PresentationAn eighteen year-old Asian female presented with a three-month history of fluctuating swelling and ptosis of the left upper eyelid. Computed tomography disclosed a distinct homogeneous lesion in the left superior orbit, molding to the globe and other orbital structures. At histopathological evaluation the lesion was composed of numerous blood vessels lined by plump endothelial cells with oval nuclei protruding into the lumen. Surrounding the vessels, there was a chronic inflammatory infiltrate with a large proportion of eosinophils. Based on clinical and histopathological findings, the diagnosis of EH was made.ConclusionAlthough exams like blood count, urinalysis and whole body scans can assist in the differential diagnosis, EH can be diagnosed and differentiated from KD on histopathological grounds. The presence of vascular hyperplasia with plump endothelial cells protruding into the lumen is the most important discriminator in establishing the diagnosis of EH. Such distinction is crucial for the patient because EH is not associated with any of the systemic manifestations present in KD.


International Journal of Pediatric Otorhinolaryngology | 2000

Sino-orbital foreign body in a child

Mark Samaha; John J. Manoukian; Bryan Arthurs

Foreign bodies of the sinuses are uncommon. Few reports exist in the English literature. Among these, the frontal and maxillary sinuses are most often involved. Ethmoid and sphenoid foreign bodies are rare and tend to present with chronic symptoms due to delayed diagnosis. We present a case of an acute presentation of a foreign body involving the orbit and ethmoid sinus in a 12-year-old male.


Ophthalmic Plastic and Reconstructive Surgery | 2008

Anetodermic variant of a periorbital pilomatricoma.

Bruno F. Fernandes; Ahmed Al-Hinai; Rubens Belfort; Enzo Castiglione; Bryan Arthurs; Miguel N. Burnier

Pilomatricoma usually presents as a solitary hard nodule located deep in the dermis. However, a variant termed anetodermic is often seen in the elderly. Instead of a hard nodule, a rapidly growing bullous lesion is seen. The authors report a 60-year-old man who presented with an erythematous bullous lesion at the left medial canthus. The lesion started as a small 3-mm papule and grew significantly to a 12-mm lesion in 5 weeks. Histopathologically, the tumor was composed of basophilic and keratinized shadow cells typical of pilomatricoma. Anetodermic changes could also be seen, represented by intralesional hemorrhage, dilated blood and lymphatic vessels, and disruption of dermal collagen fibers. The anetodermic variant of pilomatricoma was described in 1943 and accounts for only 2% of cases. Compression of vessels by the neoplastic process and peritumoral inflammatory infiltration are the proposed pathogenic mechanisms underlying the atypical findings.


Canadian Journal of Ophthalmology-journal Canadien D Ophtalmologie | 2012

Herpes zoster ophthalmicus complicated by ipsilateral isolated Bell's palsy: a case report and review of the literature

Susan M. Wakil; Radwan Ajlan; Bryan Arthurs

The objective of this study was to present a unique case of unilateral facial nerve palsy as an isolated complication of herpes zoster ophthalmicus. An 82-year-old immunocompetent male presented with a 1-week history of painful left scalp lesions. The diagnosis of left herpes zoster ophthalmicus with associated keratoconjunctivitis was established. A 7-day course of oral acyclovir (800 mg/day) along with topical prednisolone acetate 1% and moxifloxacin were started. Three weeks later, the ocular zoster involvement resolved and the vesicular lesions of the skin had regressed. However, the patient developed an isolated left Bells palsy that gradually improved with conservative therapy. To the best of our knowledge, we present an unusual case of herpes zoster ophthalmicus complicated by an isolated ipsilateral Bells palsy. The patient has had a near complete resolution of all symptoms after antiviral therapy for the zoster ophthalmicus component along with conservative management for the Bells palsy.


Clinical Ophthalmology | 2013

Rapid growth of an orbital hemangiopericytoma with atypical histopathological findings.

Luiz Frederico R. Pacheco; Bruno F. Fernandes; Cristina Miyamoto; Shawn C. Maloney; Bryan Arthurs; Miguel N. Burnier

Hemangiopericytoma is a rare vascular tumor that originates from pericytes. The orbit is a rare location for this particular tumor, and corresponds to 0.8% to 3% of all primary orbital tumors. We report a case of a hemangiopericytoma in a 45-year-old man that had an unusual presentation, as a rapidly growing mass in the anterior right inferior orbit. Given that there are no clinical or radiological signs pathognomonic of this tumor, a careful histopathological examination is necessary to confirm the diagnosis. In our case, it presented also with unusual histopathological findings. The clinical features, radiological findings, differential diagnosis and treatment of this challenging entity are reviewed in this case report.


Ophthalmic Plastic and Reconstructive Surgery | 1992

Collagen shield contact lens use after eyelid surgery

Murray A. Meltzer; John M. Nassif; Kenneth J. Hyde; Bryan Arthurs

The use of collagen shields to enhance comfort and facilitate recovery after eyelid surgery was studied. Thirty-two patients undergoing various eyelid procedures were studied. In 10 patients, bilateral surgery was performed and the contralateral eye was used as a control. In patients with unilateral surgery, 20 of 22 patients exhibited comfortable postoperative courses, and in patients with bilateral surgery, eight of 10 patients had less conjunctival injection, chemosis, corneal staining, or lid edema on the side with the collagen shield. The only complications occurred with the 72-h lens, which tended to irritate the cornea and have a variable dissolution time.

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Mikel Mikhail

McGill University Health Centre

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