Results 71 to 80 of about 21,956 (166)

A rare case of retrobulbar neoplasia. [PDF]

open access: yes, 2013
Introduction Neoplasms involving the optic nerve are rare. Intraorbital meningiomas, the most common tumour of the optic nerve, represent only 3% of all meningiomas in dogs, so few data exists to predict its symptoms and biologic behaviour. Objectives
Mesquita, JR   +8 more
core  

Dosimetric comparison of proton radiation therapy, volumetric modulated arc therapy, and three-dimension conformal radiotherapy based on intracranial tumor location. [PDF]

open access: yes, 2018
(1) Background: Selecting patients that will benefit the most from proton radiotherapy (PRT) is of major importance. This study sought to assess dose reductions to numerous organs-at-risk (OARs) with PRT, as compared to three-dimensional conformal ...
Paul Windisch   +29 more
core   +1 more source

Acute vision loss as the presenting symptom of metastatic prostate cancer: A case report and review of the literature

open access: yesOtolaryngology Case Reports
Objective: Primary sphenoid sinus neoplasms are rare, and metastasis to this site is even more uncommon. While prostate cancer is the most frequently diagnosed malignancy in men, it rarely spreads to the paranasal sinuses.
Eugene Oh   +9 more
doaj   +1 more source

Walsh & Hoyt: Imaging of Tumors [PDF]

open access: yes, 2005
Tumors confined to the globe are probably best imaged with ultrasonography, although CT can provide further detail, especially if the process involves calcification (such as seen in retinoblastoma) or acute hemorrhage.
Nancy J. Newman, MD
core  

An Unusual Presentation of Esthesioneuroblastoma in a Young Pregnant Female [PDF]

open access: yes, 2017
<b><i>Background:</i></b> Esthesioneuroblastoma is a rare neuroepithelial tumor arising from the olfactory epithelium in the cribriform plate or nasal cavity.
Amar Ranjan   +3 more
core   +1 more source

Neurofibromatosis type 1 and malignancy in childhood [PDF]

open access: yes, 2016
Neurofibromatosis type 1 (NF1) is an autosomal dominant hereditary neurocutaneous syndrome characterized by multi-system involvement and an increased incidence of both benign and malignant tumors. In this study, we evaluated the clinical presentation and
AKYÜZ, CANAN   +11 more
core   +1 more source

Carcinoma of unknown primary presenting as an apoplectic pituitary adenoma with suprasellar extension: a case report

open access: yesEgyptian Journal of Neurosurgery
Background Pituitary metastasis is a rare entity, accounting for less than 1% of all intracranial neoplasms. Common primary sites include the breast and lungs.
Syeda Maria Ahmad Zaidi   +2 more
doaj   +1 more source

Clinical spectrum and clinicopathological correlation of pediatric orbital tumors: 20 years' experience from a tertiary eye care center

open access: yesIndian Journal of Ophthalmology
Purpose: To study the epidemiological profile of various pediatric orbital tumors and determine their clinicopathological correlation over 20 years. Methods: A retrospective analysis of all pediatric patients with orbital tumors from the medical records ...
Vathsalya Vijay   +5 more
doaj   +1 more source

Paraneoplastic NMOSD associated with EG junction adenocarcinoma expressing unprotected AQP4 [PDF]

open access: yes, 2018
Paraneoplastic neurologic disorder (PND) is a remote manifestation triggered by altered immune response against neoplasms. Emerging discovery of antineuronal antibodies and diagnostic tool development, such as PET-CT, allow us the early recognition and ...
Chihara, Norio   +6 more
core   +1 more source

Anatomic changes in operation through pterion to opticocarotid space

open access: yesChinese Journal of Contemporary Neurology and Neurosurgery, 2010
Objective To comprehend the anatomic changes of opticocarotid space during neuro⁃surgical procedure to increase the success rate of operation at sellar region. Methods Tumors at sellar region were operated through Yasargil pterion to opticocarotid space.
Hong⁃wei ZHANG   +2 more
doaj  

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