Results 31 to 40 of about 21,726 (217)

Endoscopic transsphenoidal removal of neoplasms of the chiasmal-sellar region in children

open access: yesВестник хирургии имени И.И. Грекова, 2021
The OBJECTIVE was to analyze the results of endoscopic transsphenoidal removal of neoplasms of the chiasmalsellar region in children.MATERIALS AND METHODS.
A. V. Burmistrova   +2 more
doaj   +1 more source

Phyllodes tumor with metastases to the skull managed with local excision: A case report

open access: yesRare Tumors, 2019
The behavior of phyllodes tumors is unpredictable and can behave as benign fibroadenomas or malignant neoplasms mimicking the course of aggressive sarcomas, characterized by distant metastases and a high short-term mortality.
Ronak Patel   +4 more
doaj   +1 more source

High resolution transcranial imaging based on the optoacoustic memory effect [PDF]

open access: yesarXiv, 2021
Acoustic impedance mismatches between soft tissues and bones are known to result in strong aberrations in optoacoustic and ultrasound images. Of particular importance are the severe distortions introduced by the human skull, impeding transcranial brain imaging with these modalities.
arxiv  

Intraosseous Cavernous Hemangioma of the Neurocranium: A Review of the Literature

open access: yesCaspian Journal of Neurological Sciences, 2023
Skull primary intraosseous cavernous hemangiomas (PICHs) are uncommon, benign, and slowgrowing tumors. These lesions are not widely known, specifically as regards the pathogenesis.
Antonello Curcio   +5 more
doaj  

Giant Petroclival Primary Intradural Chordoma: Case Report and Systematic Review of the Literature

open access: yesJournal of Neurological Surgery Reports, 2014
Background Chordomas are rare, locally aggressive neoplasms thought to arise from notochordal remnants in the axial skeleton. Primary intradural chordomas are considered to be extremely rare.
Fahad AlOtaibi   +3 more
doaj   +1 more source

Chondroblastoma with Secondary Aneurysmal Bone Cyst in the Sphenoid Sinus: A Case Report

open access: yes대한영상의학회지, 2017
Chondroblastomas are rare benign cartilaginous neoplasms found in young patients. These tumors typically arise in the epiphysis or apophysis of a long bone. Chondroblastomas arising in the skull and facial bones are extremely rare.
Sung Hwan Cho   +4 more
doaj   +1 more source

Computational Intelligence Approach to Improve the Classification Accuracy of Brain Neoplasm in MRI Data [PDF]

open access: yesarXiv, 2021
Automatic detection of brain neoplasm in Magnetic Resonance Imaging (MRI) is gaining importance in many medical diagnostic applications. This report presents two improvements for brain neoplasm detection in MRI data: an advanced preprocessing technique is proposed to improve the area of interest in MRI data and a hybrid technique using Convolutional ...
arxiv  

Proptosis secondary to a solitary plasmacytoma of the sphenoid bone: a case report on a rare skull base tumour

open access: yesEgyptian Journal of Neurosurgery, 2022
Background Plasmacytomas of the skull base are not commonly encountered in clinical practice, with few reported cases in the literature. They form part of the spectrum of plasma cell neoplasms and are classified as a solitary bone plasmacytoma if arising
Panduranga Seetahal-Maraj   +2 more
doaj   +1 more source

Simultaneous Skull Conductivity and Focal Source Imaging from EEG Recordings with the help of Bayesian Uncertainty Modelling [PDF]

open access: yesarXiv, 2020
The electroencephalography (EEG) source imaging problem is very sensitive to the electrical modelling of the skull of the patient under examination. Unfortunately, the currently available EEG devices and their embedded software do not take this into account; instead, it is common to use a literature-based skull conductivity parameter. In this paper, we
arxiv  

Retrobulbar chondrosarcoma in a dog [PDF]

open access: yesOpen Veterinary Journal, 2014
This paper presents a review of a dog, with a retrobulbar chondrosarcoma, which was admitted for surgery for visible changes in his eye during inspection. Orbital neoplasia in dogs may be primary and secondary.
M. Ralić   +3 more
doaj  

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