Significance of CT and MR findings in sphenoid sinus disease.

Journal ArticleDisorders of the paranasal sinuses, particularly the sphenoid sinus, can be associated with significant disorders of the optic and other cranial nerves. We examined 100 consecutive routine CT scans, 100 posterior fossa CT scans, and 100 MR scans to look for evidence of sinus disease, especially of the sphenoid sinus. The sphenoid sinus was abnormal in 7% of scans by all methods. Other sinuses were more frequently abnormal, including maxillary (23%), ethmoid (34%), and frontal (16%). Although MR was more sensitive in detecting sinus inflammation in the ethmoid and maxillary sinuses, the frequency of visible sphenoid sinus abnormalities detected by MR was not significantly greater when compared with CT. Of those patients with abnormal sphenoid sinuses, 24% had visual problems associated with the abnormality

Unusual Pituitary Tumor Production a Chiasmal Syndrome

Headache; Bilateral loss of visionA 39-year old female with headache and bilateral loss of vision.VA: Hand motions OD, Counting fingers OSCTSellar vascular lesion extending into the right middle fossaSurgeryAttache

Optic Neuropathy and Sphenoid Sinusitis: A Case Report

Although the sphenoid sinus is said to be "....the most neglected of nasal sinuses", there have been frequent reports of neuro-ophthalmic dysfunction secondary to neoplastic, inflammatory, and fulminant suppurative processes involving the sphenoid sinus. Chronic infective sinusitis has been less well recognized as a potential etiologic factor in visual system problems. We report the case of a 27 year old woman who presented with symptoms of right optic neuropathy but had signs of bilateral optic nerve dysfunction (OD^ OS)

Aditya Vikram Mishra, MD, FRCC (1961-2017)

Aditya Mishra was born on June 15, 1961, in Rajasthan, India, to Raghunandan and Sarvada Mishra. He emigrated to Halifax, Nova Scotia, Canada, in 1966. He received his bachelor of science degree with distinction in 1980 and his medical doctorate also with distinction from Dalhousie University in Halifax in 1984. After an internship at Dalhousie University, he did general practice/emergency department practice in Cape Breton; Bathurst, New Brunswick; and Halifax, Nova Scotia, from July 1985 to June 1986. He became an ophthalmic pathology fellow in July 1986 and completed his ophthalmology residency at Dalhousie University in 1990, where he scored at the 99th percentile on the Ophthalmology Knowledge Assessment Program 3 years in a row. He practiced general ophthalmology in Moncton, New Brunswick, for 1 year

Acute Vision Loss Post Cataract Surgery Associated with Bilateral Panretinal Dysfunction Secondary to Autoimmune Retinopathy?

Autoimmune retinopathies can be paraneoplastic or non- paraneoplastic and are associated with antibodies that may cause loss of visual acuity, dyschromatopsia, visual field deficits and pan-retinal photoreceptor dysfunction (rods and cones). We report a series of patients who present with acute vision loss p ost cataract surgery with evidence of non-paraneoplastic autoimmune retinopathy

The Halifax Explosion of 1917: the oculist experience

Background: Despite its prominence in Canadian history, there are few publications about the Halifax Explosion of 1917 that deal with the care of victims with eye injuries. Methods: Archived documents relating to the nature and treatment of eye injuries sustained during the Halifax Explosion were reviewed at the Public Archives of Nova Scotia and the Maritime Museum of the Atlantic. A review of current literature was performed. Results: Detailed accounts regarding the personal and surgical experience of 2 ophthalmologists, G.H. Cox and F.T. Tooke, were found. Several unpublished government and personal documents on eye injuries sustained during the Halifax Explosion are filed at the Public Archives of Nova Scotia. Twelve ophthalmologists treated 592 people with eye injuries and performed 249 enucleations. Sixteen people had double enucleations. Most of the eye injuries were caused by shards of shattered glass. Sympathetic ophthalmia was the feared complication for penetrating eye injuries and a common indication for enucleation in 1917. A Blind Relief Fund was established to help treat, rehabilitate, and compensate the visually impaired. Interpretation: Many of the eye injuries sustained during the Halifax Explosion were due to flying shards of glass. Details of their treatment provide insight into a unique and devastating event in Canadian medical history and demonstrate how eye injuries were managed in 1917

The Halifax disaster (1917): eye injuries and their care

Explosions, man‐made and accidental, continue to require improved emergency medical responses. In the 1917 Halifax Explosion, an inordinate number of penetrating eye injuries occurred. A review of their treatment provides insight into a traumatic event with unique ophthalmological importance. Archived personal and government documents relating to the Halifax Explosion were reviewed at the Public Archives of Nova Scotia, Canada, along with a review of current literature. Twelve ophthalmologists treated 592 people with eye injuries and performed 249 enucleations. Sixteen people had both eyes enucleated. Most of the eye injuries were caused by shards of shattered glass. A Blind Relief Fund was established to help treat and rehabilitate the visually impaired. The injured were given pensions through the Canadian National Institute for the Blind, Toronto, Ontario, Canada, which continue to this day. Sympathetic ophthalmia was the feared complication for penetrating eye injuries and a common indication for enucleation in 1917. Even so, the severity and the overwhelming number of eye injuries sustained during the Halifax Explosion made it impossible for lengthy eye‐saving procedures to be performed. Enucleation was often the only option

Delayed-Onset Cranial Nerve Palsy After Transvenous Embolization of Indirect Carotid Cavernous Fistulas

A carotid-cavernous sinus fistula (CCF) is an abnormal vascular connection between branches of the internal or external carotid arteries and the cavernous sinus. A "direct CCF" refers to a connection between the internal carotid artery and the cavernous sinus