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https://www.readbyqxmd.com/read/28414190/engineered-polymeric-microspheres-obtained-by-multi-step-method-as-potential-systems-for-transarterial-embolization-and-intraoperative-imaging-of-hcc-preliminary-evaluation
#1
Elena Piera Porcu, Andrea Salis, Giovanna Rassu, Marcello Maestri, Jacopo Galafassi, Giovanna Bruni, Paolo Giunchedi, Elisabetta Gavini
The aim of this study was the development of novel fluorescent microspheres as embolic agent for transarterial embolization (TAE) of advanced stages of hepatocellular carcinoma (HCC). TAE is a minimally invasive procedure that induces tumour regression blocking the blood flow by injection of microparticles. The microspheres currently used in clinical application cannot be visualized in vivo. Surgeon could exploit the intraoperative detection of embolic agents during resection of the malignant mass. Biocompatible indocyanine green (ICG)-loaded microspheres (CAB-CS-ICG) were prepared using a multi-step method...
April 13, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28397259/patient-understanding-of-genetic-information-influences-reproductive-decision-making-in-retinoblastoma
#2
A Foster, L Boyes, L Burgess, S Carless, V Bowyer, H Jenkinson, M Parulekar, J Ainsworth, J Hungerford, Z Onadim, M Sagoo, E Rosser, M A Reddy, T Cole
Retinoblastoma is the most common malignant tumour of the eye in childhood, with nearly all bilateral tumours and around 17-18% of unilateral tumours due to an oncogenic mutation in the RB1 gene in the germline. Genetic testing in all cases enables accurate risk assessment and optimal clinical management for the affected individual, siblings, and future offspring. We carried out the first UK-wide audit of understanding of genetic testing in individuals with retinoblastoma. A total of 292 individuals aged 16-45 years were included...
April 11, 2017: Clinical Genetics
https://www.readbyqxmd.com/read/28388343/orbital-melanoma-masquerading-as-a-galloping-haemangioma
#3
Daniele Lorenzano, Katherine Miszkiel, Geoffrey E Rose
We describe a 32-year-old pregnant woman who was referred to our clinic after 6 weeks of observation elsewhere with a rapidly expanding orbital mass, proptosed globe and slowly decreasing of vision in her left eye. To our examination the patient presented with congested optic disc fine macular striae and some slight choroidal elevation without any retinal pigmentation. An MRI scan without contrast was performed, suggesting the signal charactheristics of an orbital mass consistent with a cellular lesion such as a cavernous hemangioma or a solitary fibrous tumour...
April 2017: Orbit
https://www.readbyqxmd.com/read/28387434/incidence-of-secondary-glaucoma-after-treatment-of-uveal-melanoma-with-robotic-radiosurgery-versus-brachytherapy
#4
Jakob Siedlecki, Veronika Reiterer, Simon Leicht, Paul Foerster, Karsten Kortüm, Ulrich Schaller, Siegfried Priglinger, Christoph Fuerweger, Alexander Muacevic, Kirsten Eibl-Lindner
PURPOSE: Different modalities of radiation therapy nowadays allow for effective treatment of uveal melanoma combined with the advantage of eye preservation. However, this advantage can secondarily be impaired by radiation-related side effects. After local recurrence, secondary glaucoma (SG) has been described as second most frequent complication leading to need of enucleation. This study compares the incidence of SG after conventional Ruthenium (Ru)-106 brachytherapy (BT) versus CyberKnife robotic radiosurgery (RRS) which has been gaining importance lately as an efficient treatment option offering improved patient comfort...
April 7, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28376556/-uveal-melanoma-cell-under-oxidative-stress-influence-of-vegf-and-vegf-inhibitors
#5
M Dithmer, A M Kirsch, L Gräfenstein, F Wang, H Schmidt, S E Coupland, S Fuchs, J Roider, A K Klettner
Background The role of oxidative stress in cancer is complex. While the pathological alterations induced by oxidative stress may be involved in the induction of tumours, in the late stages of tumour development, it can facilitate the loss of tumour cells and might even prevent metastasis. Tumour cells show metabolic alterations, often inducing an increased production of reactive oxygen species, which makes these cells particularly vulnerable to additional oxidative stress. This is an important mode of action in the use of many chemotherapeutics and in the application of ionizing radiation...
April 4, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28338841/out-of-field-dose-measurements-for-3d-conformal-and-intensity-modulated-radiotherapy-of-a-paediatric-brain-tumour
#6
Marija Majer, Liliana Stolarczyk, Marijke De Saint-Hubert, Damian Kabat, Željka Kneževic, Saveta Miljanic, Natalia Mojzeszek, Roger Harrison
The purpose of this study was to measure out-of-field organ doses in clinical conditions in anthropomorphic paediatric phantoms which received a simulated treatment of a brain tumour with intensity modulated radiotherapy (IMRT) and 3D conformal radiotherapy (3D CRT). Organ doses measured with radiophotoluminescent and thermoluminescent dosemeters were on average 1.6 and 3.0 times higher for the 5 y-old than for the 10 y-old phantom for IMRT and 3D CRT, respectively. A larger 5-y to 10-y organ dose ratio for 3D CRT can be explained because the use of a mechanical wedge for the 5-y-old 3D CRT phantom treatment increased out-of-field doses...
February 27, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/28302155/a-prospective-randomised-placebo-controlled-double-masked-three-armed-multicentre-phase-ii-iii-trial-for-the-study-of-a-topical-treatment-of-ischaemic-central-retinal-vein-occlusion-to-prevent-neovascular-glaucoma-the-strong-study-study-protocol-for-a-randomised
#7
Katrin Lorenz, Yvonne Scheller, Katharina Bell, Franz Grus, Katharina A Ponto, Felix Bock, Claus Cursiefen, Jens Flach, Marta Gehring, Tunde Peto, Rufino Silva, Yossi Tal, Norbert Pfeiffer
BACKGROUND: Neovascular glaucoma (NVG) is rare, comprising only 3.9% of all glaucoma cases. The most common cause of NVG is ischaemic central retinal vein occlusion (iCRVO). NVG frequently results in blindness and painful end-stage glaucomatous damage leading to the need for enucleation. Currently, there is no preventive therapy for NVG following iCRVO. Rescue treatments have severe drawbacks. Accordingly, there is a great need for preventing the often visually devastating outcomes of NVG...
March 16, 2017: Trials
https://www.readbyqxmd.com/read/28260625/cavernous-sinus-syndrome-a-prospective-study-of-73-cases-at-a-tertiary-care-centre-in-northern-india
#8
S Bhatkar, M K Goyal, A Takkar, K K Mukherjee, P Singh, R Singh, V Lal
OBJECTIVES: To study the clinical and etiological profile of patients with cavernous sinus syndrome (CSS) and identify factors which could determine the etiology and influence the outcome of these patients. PATIENTS AND METHODS: This prospective observational study included 73 consecutive patients satisfying the criteria of CSS (i.e. involvement of any 2 of the 3rd, 4th, 5th and 6th cranial nerves or any one of them with radiological evidence of cavernous sinus involvement)...
April 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28258179/extraskeletal-orbital-mesenchymal-chondrosarcoma-surgical-approach-and-mini-review
#9
REVIEW
Ashish Jakhetiya, Nootan Kumar Shukla, Dillip Muduly, Shashank S Kale
Extraskeletal orbital mesenchymal chondrosarcoma (MC) is an extremely rare and highly aggressive tumour. It has characteristic radiological features and pathognomic histological biphasic pattern. Radical resection with negative margins is the mainstay of treatment; role of adjuvant chemotherapy and radiotherapy is yet not well defined. We report a rare case of 18-year-old man who was diagnosed to have orbital MC. He presented with locally advanced disease with no vision in the affected eye. He underwent right orbital exenteration; a transcranial intradural approach was used to divide the optic nerve, and the temporalis muscle flap was utilised to fill the exenterated orbit...
March 3, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28228834/anti-collapsing-response-mediating-protein-5-antibody-positive-paraneoplastic-perioptic-neuritis-without-typical-neurological-symptoms
#10
Nozomi Igarashi, Hiromasa Sawamura, Toshikatsu Kaburaki, Makoto Aihara
A 68-year-old male presented with blurred vision in both eyes. Ophthalmoscopy revealed bilateral prominent disc swelling and vitritis. No systematic neurological symptoms were observed. Magnetic resonance imaging revealed bilateral meningeal enhancement of the optic nerve. Small cell carcinoma was found, and antibodies against collapsing response-mediating protein-5 (CRMP-5) were detected in the serum. Ophthalmological manifestations disappeared during a decrease in tumour size with treatment for the malignancy...
February 2017: Neuro-ophthalmology
https://www.readbyqxmd.com/read/28211877/fresh-frozen-amniotic-membrane-for-conjunctival-reconstruction-after-excision-of-neoplastic-and-presumed-neoplastic-conjunctival-lesions
#11
U Agraval, P Rundle, I G Rennie, S Salvi
PurposeSuspicious neoplastic conjunctival lesions often require wide excision with tumour-free margins, leaving significant conjunctival defects requiring reconstruction. In this study we report the results of using fresh frozen amniotic membrane grafts (AMG) after wide excision of potentially malignant lesions.MethodsRetrospective review of 53 patients; between January 2011 and April 2014. Conjunctival lesions were excised with a non-touch technique (2 mm margin) and sent for histopathological analysis. The surgical margins were treated with cryotherapy and a fresh frozen AMG was used to cover the defect...
February 17, 2017: Eye
https://www.readbyqxmd.com/read/28210186/bilateral-retinitis-pigmentosa-with-unilateral-choroidal-nevus-a-hitherto-unreported-association
#12
Rupak Roy, Kumar Saurabh, Debmalya Das, Preeti Sharma, Avirupa Ghose, Dhileesh P Chandrasekharan
Retinitis Pigmentosa (RP) has been reported to be associated with retinal hemangioma, retinal angiomatous proliferation, polypoidal choroidal vasculopathy and vasoproliferative tumours. However there is no previous report of choroidal nevus in an eye with RP. We describe such a case in which the eye with RP had a choroidal nevus at the macula. The coexistence of these two entities in the same eye emphasizes the need of careful examination of patients with RP. The presence of choroidal nevus warrants additional investigations such as B scan ultrasonography and a close follow-up to pick up changes in the nevus size and morphology...
July 2016: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
https://www.readbyqxmd.com/read/28202381/sphenoid-sinus-carcinoid-tumour-causing-ectopic-acth-syndrome
#13
Sanjaya Perera, Ahmad Taha
A thirty-eight year old patient presented with a gradual increase in weight and Cushingoid facies of two years duration. He also had orbital congestion, with puffy eyelids and corkscrew conjunctival vessels, associated with painful eye movements. An endocrine evaluation revealed raised cortisol and ACTH. Head imaging was performed which showed an enhancing tumour arising from the sphenoid sinus, with osseous erosion of the sphenoid sinus, extending to the nasopharynx, sellar and a small amount extending intracranially...
February 12, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28185781/classification-of-orbital-exenteration-and-reconstruction
#14
Marco R Kesting, Steffen Koerdt, Niklas Rommel, Thomas Mücke, Klaus-Dietrich Wolff, Christopher P Nobis, Florian Ringel, Gesche Frohwitter
Orbital exenteration (OE) is considered to be a mutilating surgical procedure reserved for relentlessly progressive neoplastic disorders or extensive facial trauma with unfavourable eye involvement. Malignant tumours, accounting for the majority of ablative orbital surgeries, may be caused by primary orbital tumours or secondarily by neoplasias from the surrounding skin, the maxillary sinus or intracranial malignomas. Orbital exenteration following trauma is mostly caused by penetrating globe defects or extended infections with the danger of intracranial effects...
January 10, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28183830/diagnosis-and-management-of-secondary-epipapillary-retinoblastoma
#15
Ido Didi Fabian, Francesco Puccinelli, Marie-Claire Gaillard, Maja Beck-Popovic, Francis L Munier
BACKGROUND: Reports on retinoblastoma relapse at the optic nerve head (ONH) are anecdotal and include only treatments by external beam radiotherapy (EBRT) or enucleation. We aimed to describe such cases, termed secondary epipapillary retinoblastoma, diagnosed and monitored with the assistance of hand-held spectral domain optical coherence tomography (HHSD-OCT) and treated with intraophthalmic artery chemotherapy (IAC) and/or intravitreous chemotherapy (IViC). METHODS: A retrospective analysis of secondary epipapillary retinoblastoma cases treated conservatively...
February 9, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28169068/determination-of-inmune-response-and-inflammation-mediators-in-tears-changes-in-dry-eye-and-glaucoma-as-compared-to-healthy-controls
#16
J Benitez-Del-Castillo Sánchez, M D Morillo-Rojas, C Galbis-Estrada, M D Pinazo-Duran
OBJECTIVE: To determine the expression profile of immune response and inflammation (IRI) mediator molecules in tears from patients with dry eye (DE), and those suspected of having or have primary open-angle glaucoma (POAG) under treatment and compare them with healthy controls. METHODS: A prospective observational cohort study including 107 participants sub-divided into: healthy controls (CG; n=30), patients with DE (DEG; n=41) and patients suspected of having or have POAG and on hypotensive treatment (POAG-G; n=36)...
February 3, 2017: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/28164401/skin-depigmentation-associated-with-toceranib-phosphate-in-a-dog
#17
Jacqueline V J Cavalcanti, Andrea Hasbach, Katie Barnes, Rahul B Dange, Jon Patterson, Paulo Vilar Saavedra
BACKGROUND: Drug-induced depigmentation is frequently observed in humans undergoing tyrosine kinase inhibitor therapy, whereas it is not reported in dogs. The skin depigmentation can occur after the first week of treatment and it is reversible within a few weeks after drug discontinuation. OBJECTIVES: To report the clinical and histopathological features of an episode of cutaneous adverse drug reaction associated with short term administration of toceranib phosphate...
February 6, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28159770/ultrasonic-mirror-image-from-ruthenium-plaque-facilitates-calculation-of-uveal-melanoma-treatment-dose
#18
Charlotte Alfast Espensen, Peter Koch Jensen, Lotte Stubkjær Fog, Ane Lindegaard Appelt, Kristian Klemp, Hans Callø Fledelius, Lena Specht, Jens Folke Kiilgaard
BACKGROUND/AIMS: To present a new method to determine dose depth and the distance from the concave side of the plaque to the tumour base in patients with uveal melanoma treated with ruthenium-106 based on ultrasonic mirror image. METHODS: We used the mirror image associated with ultrasound during plaque brachytherapy to determine intraobserver reproducibility and interobserver agreement between two surgeons. 230 eyes with primary uveal melanoma were included in a retrospective analysis to determine the distance from the plaque to the tumour base using ultrasound...
February 3, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28109531/diffusion-weighted-imaging-dwi-of-hepatocellular-carcinomas-a-retrospective-analysis-of-the-correlation-between-qualitative-and-quantitative-dwi-and-tumour-grade
#19
T Jiang, J H Xu, Y Zou, R Chen, L R Peng, Z D Zhou, M Yang
AIM: To evaluate the application of qualitative and quantitative diffusion-weighted imaging (DWI) in predicting the histological grade of hepatocellular carcinoma (HCC). MATERIALS AND METHODS: Two hundred and fifty-four patients with pathologically confirmed HCC who underwent hepatic DWI on a 1.5-T platform (b = 0, 600 s/mm(2)) were evaluated retrospectively. HCCs were divided into well-, moderately, and poorly differentiated groups. The relationships between naked-eye signal intensity (SI), SI values, apparent diffusion coefficient (ADC) values on DWI, and the histopathological differentiation of HCC were analysed...
January 19, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28107452/mice-lacking-hbp1-function-are-viable-and-fertile
#20
Cassy M Spiller, Dagmar Wilhelm, David A Jans, Josephine Bowles, Peter Koopman
Fetal germ cell development is tightly regulated by the somatic cell environment, and is characterised by cell cycle states that differ between XY and XX gonads. In the testis, gonocytes enter G1/G0 arrest from 12.5 days post coitum (dpc) in mice and maintain cell cycle arrest until after birth. Failure to correctly maintain G1/G0 arrest can result in loss of germ cells or, conversely, germ cell tumours. High mobility group box containing transcription factor 1 (HBP1) is a transcription factor that was previously identified in fetal male germ cells at the time of embryonic cell cycle arrest...
2017: PloS One
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