23 results match your criteria pole obscured

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Plaque brachytherapy for choroidal melanoma with vitreous haemorrhage: a therapeutic challenge.

BMJ Case Rep 2021 Apr 13;14(4). Epub 2021 Apr 13.

Department of Radiodiagnosis, Government Medical College and Hospital, Chandigarh, India.

A 47-year-old man presented with profound loss of vision in right eye and relative afferent pupillary defect. On fundus examination, posterior pole details were obscured due to dense vitreous haemorrhage. B-scan ultrasonography was performed that revealed a mushroom-shaped hyperechoic lesion with medium internal reflectivity on A-scan ultrasonography. Read More

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Multimodal Imaging of Annular Choroidal Detachment in a Patient with Vogt-Koyanagi-Harada Disease.

Ocul Immunol Inflamm 2020 Jan 17:1-4. Epub 2020 Jan 17.

Department of Ophthalmology, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Bucheon, Republic of Korea.

: To report a rare case of Vogt-Koyanagi-Harada (VKH) patient with bilateral annular choroidal detachment and describe ultra-widefield angiographic findings.: Case report.: A 61-year-old male was diagnosed as VKH based on ocular signs and neurologic findings. Read More

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January 2020

Increased shear in the North Atlantic upper-level jet stream over the past four decades.

Nature 2019 08 7;572(7771):639-642. Epub 2019 Aug 7.

Department of Meteorology, University of Reading, Reading, UK.

Earth's equator-to-pole temperature gradient drives westerly mid-latitude jet streams through thermal wind balance. In the upper atmosphere, anthropogenic climate change is strengthening this meridional temperature gradient by cooling the polar lower stratosphere and warming the tropical upper troposphere, acting to strengthen the upper-level jet stream. In contrast, in the lower atmosphere, Arctic amplification of global warming is weakening the meridional temperature gradient, acting to weaken the upper-level jet stream. Read More

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Quantitative analysis of optical coherence tomographic angiography (OCT-A) in patients with non-arteritic anterior ischemic optic neuropathy (NAION) corresponds to visual function.

PLoS One 2018 28;13(6):e0199793. Epub 2018 Jun 28.

Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA, United States of America.

Purpose: Non-arteritic anterior ischemic optic neuropathy (NAION) is the most common cause of non-glaucomatous optic neuropathy in older adults. Optical coherence tomographic angiography (OCT-A) is an emerging, non-invasive method to study the microvasculature of the posterior pole, including the optic nerve head. The goal of this study was to assess the vascular changes in the optic nerve head and peripapillary area associated with NAION using OCT-A. Read More

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December 2018

Magnetic resonance imaging investigation of radio-lunate relations: use in assessing distal radial fracture reduction.

J Hand Surg Eur Vol 2017 Mar 18;42(3):271-274. Epub 2016 Nov 18.

Orthopaedics and Trauma Unit, Aberdeen Royal Infirmary, Aberdeen, UK.

Reformatted magnetic resonance imaging scans of 27 normal wrists were examined in incremental degrees of rotation around the central axis of the radial shaft to 30° in both directions from true lateral. A line was superimposed on the outer border of the radial dorsal cortex and continued distally to the carpal region. Measurements were made from the superior pole of the lunate to this line. Read More

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Accuracy of PET/CT Scan in the diagnosis of the focal form of congenital hyperinsulinism.

J Pediatr Surg 2013 Feb;48(2):388-93

The Congenital Hyperinsulinism Center, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.

Purpose: The purpose of the study was to determine the sensitivity of the (18)fluoro-dihydroxyphenylalanine positron emission tomography/computed tomography scan (18F-PET/CT) in the diagnosis of focal congenital hyperinsulinism (HI).

Methods: A retrospective review of children with HI who underwent a preoperative 18F-PET/CT scan was performed.

Results: Between 1/2008 and 2/2012 we performed 105 consecutive 18F-PET/CT scans on infants with HI. Read More

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February 2013

Whip use by jockeys in a sample of Australian Thoroughbred races--an observational study.

PLoS One 2012 19;7(3):e33398. Epub 2012 Mar 19.

Faculty of Veterinary Science, University of Sydney, Sydney, New South Wales, Australia.

The use of whips by jockeys is an issue. The current study viewed opportunistic high-speed footage of 15 race finishes frame-by-frame to examine the outcomes of arm and wrist actions (n = 350) on 40 horses viewed from the left of the field. Any actions fully or partially obscured by infrastructure or other horses were removed from the database, leaving a total of 104 non-contact sweeps and 134 strikes. Read More

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Laser photocoagulation (810 nm diode) for threshold retinopathy of prematurity: a prospective randomized pilot study of treatment to ridge and avascular retina versus avascular retina alone.

Int Ophthalmol 2011 Feb 31;31(1):3-8. Epub 2010 Dec 31.

Shri Bhagwan Mahavir Department of Vitreo-Retinal Services, Medical Research Foundation, Sankara Nethralaya, 18 College Road, Nungambakkam, Chennai, 600006, India.

The purpose of this study was to compare the structural outcome of laser treatment to avascular retina and ridge versus laser treatment to avascular retina alone in cases with threshold retinopathy of prematurity (ROP). A prospective, randomized, interventional, comparative study of consecutive cases referred to a single tertiary center was considered here. 50 infants with bilateral symmetrical threshold ROP were recruited into this study over a period of 3 years. Read More

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February 2011

Regression of Macular Cavernous Hemangioma with Systemic Infliximab.

Ophthalmic Surg Lasers Imaging 2010 Mar 9:1-3. Epub 2010 Mar 9.

Cavernous hemangioma of the retina is an unusual vascular hamartoma that has been reported to occur either sporadically or as a dominantly inherited trait. A case of a large and sporadic macular cavernous hemangioma that was successfully treated with systemic infliximab as a first line of treatment is presented. The patient was referred with decreased vision of the right eye for 6 months. Read More

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Visual outcome and rehabilitation in a case of bilateral acanthamoeba sclerokeratitis.

Cornea 2007 Oct;26(9):1150-2

Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA 02114, USA.

Purpose: To report a rare and complicated case of bilateral Acanthamoeba sclerokeratitis (ASK).

Methods: Case report of a 42-year-old patient who was referred to the Massachusetts Eye and Ear Infirmary 7 months after a history of culture-confirmed bilateral Acanthamoeba polyphaga sclerokeratitis. At the time of referral to the MEEI, he was noted to have iris neovascularization and chronic mydriasis in both eyes. Read More

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October 2007

Delayed diagnosis of concomitant rotator cuff tear and brachial plexopathy in a patient with traumatic brain injury: a case report.

Arch Phys Med Rehabil 2001 Dec;82(12):1729-32

Southern New England Rehabilitation Center, Providence, RI 02907, USA.

Traumatic brain injury (TBI) is often accompanied by additional trauma that can be obscured by cognitive dysfunction or multiple injuries in the same region of the body. This report describes the case of an unhelmeted motorcycle rider who collided with a telephone pole. He sustained a diffuse subarachnoid hemorrhage, bilateral subdural hematomas (right frontal and left temporal), diffuse axonal injury in the subcortical and periventricular white matter, and a left tibial fracture. Read More

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December 2001

Auricular displacement with rhytidectomy.

Authors:
R R Brink

Plast Reconstr Surg 2001 Sep;108(3):743-52

The auricle is more mobile than generally recognized and is subject to displacement during rhytidectomy. When the auricle is displaced by a rhytidectomy, movement generally occurs in an anteroinferior direction with forward rotation of the inferior pole. This displacement/rotation is often obscured by concurrent elevation of the temporal hairline and insetting errors of the lobule that may appear to be the sole deformities. Read More

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September 2001

Transient vitreous inflammatory reactions associated with combination antiretroviral therapy in patients with AIDS and cytomegalovirus retinitis.

Am J Ophthalmol 1998 Mar;125(3):292-300

Francis I. Proctor Foundation, Department of Ophthalmology, University of California, San Francisco 94122, USA.

Purpose: To report the observation that a transient vitreous inflammatory reaction may develop in the eyes of patients with acquired immunodeficiency syndrome (AIDS), cytomegalovirus retinitis, and an increased CD4+ T-lymphocyte count during treatment with antiretroviral therapy including a protease inhibitor.

Methods: We reviewed the medical records of eight patients with AIDS and cytomegalovirus retinitis who developed vitreous inflammatory reactions greater than those usually seen with this disease.

Results: Vitreous inflammatory reactions obscured the view of the posterior pole in all patients. Read More

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Regional scleral changes in form-deprivation myopia in chicks.

Exp Eye Res 1997 Mar;64(3):465-76

Department of Ophthalmology, School of Medicine, Tokyo Medical and Dental University, Japan.

Similar neurochemical events appear to be involved in the development of myopia in chicks and mammals. The rapid post-hatching development of the chick is ideal for studying experimental myopia. In this investigation, one eye of 2-day-old chicks was deprived of form vision for 2 weeks and then compared to the fellow, non-deprived eye by immunohistochemistry and light and electron microscopy. Read More

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Cytoarchitecture of the medial geniculate body in the mustached bat (Pteronotus parnellii).

J Comp Neurol 1994 Aug;346(2):161-82

Department of Molecular and Cell Biology University of California at Berkeley 94720-3200.

The cytoarchitectonic organization of the medial geniculate body and adjoining thalamic nuclei was analyzed in the mustached bat (Pteronotus parnellii). These subdivisions provide a reference for structural, physiological, connectional, and neurochemical work. Most nuclei recognized in other mammals exist in the mustached bat, although the relative volume of the three divisions was species specific. Read More

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Motor neurons and motor columns of the anterior spinal cord of salamanders: posthatching development and phylogenetic distribution.

Brain Behav Evol 1991 ;37(6):368-82

Department of Biological Sciences, Northern Arizona University, Flagstaff.

The posthatching development of rostral (1st-4th) spinal motor neurons was studied in ten species of salamanders, using horseradish peroxidase and cobaltic lysine tracing techniques. Development of spinal motor neurons differs among species in association with differences in life history and general developmental patterns (i.e. Read More

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November 1991

Multicenter trial of cryotherapy for retinopathy of prematurity. Three-month outcome. Cryotherapy for Retinopathy of Prematurity Cooperative Group.

Authors:

Arch Ophthalmol 1990 Feb;108(2):195-204

We report the results of the national multicenter trial of cryotherapy for retinopathy of prematurity, as determined 3 months after randomization. The threshold severity of retinopathy required for entry into the clinical trial was defined as five or more contiguous or eight cumulative 30 degree sectors (clock hours) of stage 3+ retinopathy of prematurity in zone 1 or 2. Transscleral cryotherapy to the avascular retina was applied in one eye when there was threshold retinopathy in both eyes, or in half the eyes when the threshold severity existed in only one eye (18% of patients). Read More

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February 1990

Surface ozone exposures measured at clean locations around the world.

Environ Pollut 1990 ;63(3):189-224

ASL & Associates, 111 North Last Chance Gulch, Helena, Montana 59601, USA.

For assessing the effects of air pollution on vegetation, some researchers have used control chambers as the basis of comparison between crops and trees grown in contemporary polluted rural locations and those grown in a clean environment. There has been some concern whether the arbitrary ozone level of 0.025 ppm and below, often used in charcoal-filtration chambers to simulate the natural background concentration of ozone, is appropriate. Read More

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Case reports to accompany Early Treatment Diabetic Retinopathy Study Reports 3 and 4. The Early Treatment Diabetic Retinopathy Study Research Group.

Authors:

Int Ophthalmol Clin 1987 ;27(4):273-333

The principles exemplified by the preceding case reports are summarized below. 1. Although the presence of DRS high-risk characteristics is the single most important indication for initiating scatter photocoagulation, intraretinal lesions suggesting ischemia (soft exudates, IRMA, venous beading, arteriolar abnormalities, and moderately severe hemorrhages and/or microaneurysms) are also important. Read More

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February 1988

[Image diagnosis of adrenal disorders. III. "Nonfunctioning" adrenal adenoma, weak mineralocorticoids producing adrenal carcinoma, congenital adrenogenital syndrome due to 21-hydroxylase deficiency--simple virilizing form, and pheochromocytoma].

Nihon Naibunpi Gakkai Zasshi 1985 Jun;61(6):677-89

The image diagnoses of a case of so-called "nonfunctioning" adrenal adenoma, weak mineralocorticoids producing adrenal carcinoma, congenital adrenogenital syndrome due to 21-hydroxylase deficiency--simple virilizing form--, and 5 cases of pheochromocytoma were studied. In a patient with so-called "nonfunctioning" adrenal adenoma (2.3 X 3. Read More

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The appearance of the pyramidal lobe on thyroid scintigraphy.

Nucl Med Commun 1984 Mar;5(3):163-8

The standard nuclear medicine textbooks describe the pyramidal lobe of the thyroid as arising from the upper part of the thyroid lobes. Anatomy and surgical texts however describe it as a thyroglossal tract remnant and state that it arises from the isthmus. Review of 150 thyroid scintigrams confirms that on scintigraphy the pyramidal lobe does appear to originate from the upper pole. Read More

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The pyramidal system of the woodchuck.

Brain Behav Evol 1981 ;19(1-2):37-55

The pyramidal system of the woodchuck was examined anatomically and electrophysiologically. The pyramidal tract was found to originate entirely within the anterior half of the cerebral hemispheres and to follow a course typical of most rodents, decussating almost entirely and descending the length of the spinal cord in the ventral part of the dorsal funiculi. It decreased in size uniformly with distance along the spinal cord; most of its fibers terminated in the medial half of the dorsal horn, though they scattered widely and even appeared to terminate on motoneurons. Read More

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Mechanism and localization of speech in the parietotemporal cortex.

Neurosurgery 1978 May-Jun;2(3):233-9

Cortical stimulation of the supramarginal and angular gyri elicited dysphasia. Delays in verbal response, misnaming, and difficulties in speech production were also elicited from this region. In two patients speech arrest occurred when stimulation was extended into the occipital cortex and the cortex medial to the supramarginal gyrus, respectively. Read More

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