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Choroidal melanoma

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https://www.readbyqxmd.com/read/28520637/clinical-experience-of-stereotactic-radiosurgery-at-a-linear-accelerator-for-intraocular-melanoma
#1
Alena Furdova, Miron Sramka, Martin Chorvath, Gabriel Kralik, Robert Furda, Michal Gregus
Long-term results with linear accelerator LINAC-based stereotactic radiosurgery for intraocular uveal malignant melanoma were assessed. A retrospective study was carried out of patients with uveal melanoma after a 1-day session stereotactic radiosurgery at LINAC in Slovakia. In the period 2001-2015, a group of 150 patients with uveal melanoma (139 choroidal melanoma, 11 ciliary body melanoma) was treated. The median tumor volume at baseline was 0.5 cm (with range from 0.2 to 1.6 cm). Tumors ranged in size from 2...
May 17, 2017: Melanoma Research
https://www.readbyqxmd.com/read/28509080/evaluation-of-dose-enhancement-in-presence-of-gold-nanoparticles-in-eye-brachytherapy-by-103-pd-source
#2
Hadi Rezaei, Mansour Zabihzadeh, Mahdi Ghorbani, Foad Goli Ahmadabad, Hesameddin Mostaghimi
In recent years, the use of gold nanoparticles in radiation therapy has been introduced as a new approach in radiotherapy. The aim of this study is to investigate the effect of gold nanoparticles (GNPs) in plaque brachytherapy for choroidal melanoma using Monte Carlo (MC) simulation. MCNPX code was used for simulation of human eye, (103)Pd (model 200) brachytherapy source and the 20 mm COMS eye plaque that was loaded with 24 (103)Pd seeds and standardized by Collaborative Ocular Melanoma Study (COMS). The tumour was defined from the inner surface of choroid with 0...
May 16, 2017: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/28503286/fulminant-hepatic-failure-due-to-metastatic-choroidal-melanoma
#3
Emmanuel Escobar-Valdivia, Roberto Monreal-Robles, Guillermo Delgado-García, Badir Hernández-Velazquez
BACKGROUND: Acute liver failure (ALF) as a consequence of metastatic disease is extremely uncommon. The liver is the most commonly affected organ by metastatic disease, but only a few cases of ALF in the setting of metastatic choroidal melanoma have been reported. CASE PRESENTATION: We describe the case of a 47-year-old man with right upper quadrant pain, progressive jaundice, and unintentional weight loss. He also reported that he had experienced reduced left visual acuity which progressed to blindness over 2 months...
2017: Caspian Journal of Internal Medicine
https://www.readbyqxmd.com/read/28499052/outcomes-of-27-gauge-vitrectomy-assisted-choroidal-and-subretinal-biopsy
#4
Dilraj S Grewal, Thomas J Cummings, Prithvi Mruthyunjaya
BACKGROUND AND OBJECTIVE: To report the initial experience of 27-gauge vitrectomy-assisted choroidal and subretinal biopsy PATIENTS AND METHODS: Retrospective, interventional case series. Eighteen eyes of 18 patients undergoing 27-gauge vitrectomy-assisted choroidal (n = 16) or subretinal biopsy (n = 2). Clinical and lesion characteristics, cytopathology, histology, gene expression profiling (GEP), visual acuity (VA), complications including vitreous hemorrhage (VH), development of rhegmatogenous retinal detachment (RD), and need for additional surgeries were analyzed...
May 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28495150/personalized-prognosis-of-uveal-melanoma-based-on-cytogenetic-profile-in-1059-patients-over-an-8-year-period-the-2017-harry-s-gradle-lecture
#5
Carol L Shields, Emil Anthony T Say, Murat Hasanreisoglu, Jarin Saktanasate, Brendan M Lawson, Jeffrey E Landy, Anjali U Badami, Meera D Sivalingam, Alexander J Hauschild, Robert J House, Zachary E Daitch, Arman Mashayekhi, Jerry A Shields, Arupa Ganguly
PURPOSE: To determine the personalized rate of uveal melanoma-related metastasis on the basis of individual tumor cytogenetic profile. DESIGN: Retrospective case series. PARTICIPANTS: A total of 1059 patients with uveal melanoma. METHODS: Fine-needle aspiration biopsy (FNAB) for DNA amplification and whole genome array-based assay were performed for analysis of chromosomes 3, 6, and 8. MAIN OUTCOME MEASURES: Melanoma-related metastasis...
May 7, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28486310/vitrectomy-assisted-biopsy-for-molecular-prognostication-of-choroidal-melanoma-2-mm-or-less-in-thickness-with-a-27-gauge-cutter
#6
Aaron Nagiel, Colin A McCannel, Christian Moreno, Tara A McCannel
PURPOSE: Fine-needle aspiration biopsy of small choroidal melanomas 2 mm or less in thickness may be associated with a low biopsy yield. This report describes our center's experience using the 27-gauge vitreous cutter to perform tumor sampling in these small melanomas. METHODS: This was a retrospective analysis of all patients who underwent a 27-gauge vitreous cutter biopsy for molecular prognostication at the time of iodine-125 plaque placement for local treatment of choroidal melanoma ≤2...
October 31, 2016: Retina
https://www.readbyqxmd.com/read/28470645/calcified-non-pigmented-choroidal-melanoma-report-of-a-rare-case
#7
C Gianniou, L Zografos, J Hrbacek, A Pica, A Moulin, A Schalenbourg
No abstract text is available yet for this article.
April 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28469878/vogt-koyanagi-harada-disease-like-posterior-uveitis-in-the-course-of-nivolumab-anti-pd-1-antibody-interposed-by-vemurafenib-braf-inhibitor-for-metastatic-cutaneous-malignant-melanoma
#8
Toshihiko Matsuo, Osamu Yamasaki
A patient with metastatic cutaneous malignant melanoma developed Vogt-Koyanagi-Harada disease-like posterior uveitis after two nivolumab (anti-PD-1 antibody) injections. Vogt-Koyanagi-Harada disease, with the background of autoimmunity against choroidal melanocytes, suggests nivolumab be working by disintegrating inhibition circuit of T cells against a common epitope shared between melanoma cells and normal melanocytes.
May 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28464984/contrast-enhanced-ultrasound-in-the-diagnosis-of-orbital-space-occupying-lesions
#9
L Yan, G He, X Zhou, Y Zheng, Y Zhu, J Yang, M Zhang, Y Zhou
AIM: To summarise the sonographic findings and assess the feasibility of contrast-enhanced ultrasound (CEUS) as an imaging method for the diagnosis of orbital space-occupying lesions. MATERIALS AND METHODS: This was a prospective study of 53 patients who underwent orbital ultrasound at Xijing Hospital. Two-dimensional ultrasound, colour Doppler flow imaging (CDFI), and CEUS imaging were obtained and compared in patients with orbital haemangioma, pseudotumour, melanoma of the choroid, and retinoblastoma...
April 29, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28461017/vitrectomy-and-vitrector-port-needle-biopsy-of-choroidal-melanoma-for-gene-expression-profile-testing-immediately-before-brachytherapy
#10
Deepthi M Reddy, Lauren B Mason, John O Mason, Jason N Crosson, Jacob J Yunker
PURPOSE: Transvitreal and transscleral needle biopsy can result in complications including vitreous hemorrhage and retinal detachment. This study evaluated a technique using 25-gauge vitrectomy as an adjunct to needle biopsy immediately before brachytherapy to minimize these complications and preserve good visual acuity. DESIGN: Retrospective, observational case series. PARTICIPANTS: Fifty-seven consecutive eyes of 57 patients with treatment-naïve medium choroidal melanomas without extraocular extension from July 2012 through September 2015...
April 28, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28448404/dynamic-contrast-enhanced-magnetic-resonance-imaging-of-ocular-melanoma-as-a-tool-to-predict-metastatic-potential
#11
Wenbo Wei, Guang Jia, Hendrik von Tengg-Kobligk, Johannes T Heverhagen, Mohamed Abdel-Rahman, Lai Wei, John B Christoforidis, Frederick Davidorf, Michael V Knopp
PURPOSE: This study explores the capability of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) to differentiate tumor characteristics of metastatic and nonmetastatic choroidal melanoma as a potential tool for patient management. MATERIALS AND METHODS: A total of 13 patients (69 ± 9 years) with choroidal melanoma were imaged using DCE-MRI on a 3-T MRI system with a 16-channel head coil. The Tofts 2-compartment model was chosen for quantification, and parameters K (the transfer constant from the blood plasma to the extracellular space) and Kep (the transfer constant from the extracellular space to the blood plasma) were calculated and compared...
April 26, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28421723/clinical-outcomes-of-proton-beam-therapy-for-choroidal-melanoma-at-a-single-institute-in-korea
#12
Tae Wan Kim, Euncheol Choi, Jeonghoon Park, Dong-Ho Shin, Su Kyung Jung, Susie Seok, Kwan Ho Cho, Joo-Young Kim, Dae Yong Kim, Tae Hyun Kim, Yang Kwon Suh, Yeon Joo Kim, Sung Ho Moon
Purpose: This study retrospectively evaluated the clinical outcomes and complications of proton beam therapy (PBT) in a single institution in Korea and quantitatively analyzed the change in tumor volume after PBT using magnetic resonance imaging (MRI). Materials and Methods: Twenty-four treatment-naïve patients who underwent PBT for choroidal melanoma between 2009 and 2015 were reviewed. Dose fractionation was 60-70 CGE over 5 fractions. Orbital MRIs were taken at baseline and 3, 6, and 12 months after PBT and annually thereafter...
April 19, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/28419403/adaptive-optics-of-small-choroidal-melanoma
#13
Murilo W Rodrigues, Emil A Say, Carol L Shields, Rodrigo Jorge
The authors report the use of an adaptive optics (AO) system in an asymptomatic patient with small choroidal melanoma. A noninvasive, novel assessment that detected potential photoreceptor abnormalities in the retina overlying the choroidal lesion and adjacent retina is presented. These findings may help current clinical evaluation to monitor structural damage to the outer retina and possibly justify earlier intervention in borderline cases. Future research is warranted to recognize full potential of this imaging modality...
April 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28416492/intravitreal-triamcinolone-acetate-for-radiation-maculopathy-recalcitrant-to-high-dose-intravitreal-bevacizumab
#14
Richard I Kaplan, Sonal S Chaugule, Paul T Finger
BACKGROUND/AIMS: To evaluate the effect of adjuvant intravitreal triamcinolone acetonide (ITA) for radiation maculopathy (RM) recalcitrant to high-dose bevacizumab in patients with choroidal melanoma after plaque radiotherapy. METHODS: Eight eyes of eight patients with RM secondary to plaque radiotherapy for choroidal melanoma, recalcitrant to high-dose bevacizumab (3.0 mg) were retrospectively evaluated. Intravitreal injections of ITA (4 mg/0.1 mL) were performed at 4-week to 16-week intervals as an adjunct to continued bevacizumab therapy...
April 17, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28399342/uveal-melanoma-treatment-and-prognostication
#15
Mehmet Dogrusöz, Martine J Jager, Bertil Damato
Approximately 90% of uveal melanoma develop in the choroid, with the remainder arising in the ciliary body or the iris. The treatment of uveal melanoma is aimed at conserving the eye and useful vision, and, if possible, preventing metastatic disease. Enucleation is now reserved for tumors that are large and/or involve the optic disc, having largely been replaced by various forms of radiotherapy (plaque brachy-therapy, proton beam or stereotactic radiotherapy) and laser therapy. Whereas iridectomy and iridocyclectomy are widely performed, transscleral exoresection of choroidal tumors is performed only in a few centers because it requires special skills and hypotensive anesthesia...
March 2017: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/28388343/orbital-melanoma-masquerading-as-a-galloping-haemangioma
#16
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/28365241/adjuvant-ab-interno-tumor-treatment-after-proton-beam-irradiation
#17
Ira Seibel, Aline I Riechardt, Jens Heufelder, Dino Cordini, Antonia M Joussen
PURPOSE: This study was performed to show long-term outcomes concerning globe preservation in uveal melanoma patients after proton beam therapy with the main focus on outcomes according to different adjuvant ab interno surgical procedures. DESIGN: Retrospective cohort study METHODS: All patients treated with primary proton beam therapy for choroidal or ciliary body melanoma between June 1998 and June 2015 were included. RESULTS: A total of 2499 patients underwent primary proton beam therapy, with local tumor control and globe preservation rates of 95...
March 29, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28362882/sex-disparity-in-survival-of-patients-with-uveal-melanoma-better-survival-rates-in-women-than-in-men-in-south-korea
#18
San Jun Park, Chang-Mo Oh, Bora Yeon, Hyunsoon Cho, Kyu Hyung Park
Purpose: The purpose of this study was to determine the survival rate of patients with uveal melanoma and sex disparity in this rate in South Korea. Methods: We extracted incident uveal melanoma patients using the Korea Central Cancer Registry (KCCR) database, which covered the entire population from 1999 to 2012 in South Korea. We estimated all-cause survival probabilities and cancer-specific survival probabilities of patients with uveal melanoma and compared these probabilities between subgroups (sex, tumor site, age at diagnosis, etc...
March 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28356703/differential-responses-of-choroidal-melanocytes-and-uveal-melanoma-cells-to-low-oxygen-conditions
#19
Cindy Weidmann, Jade Pomerleau, Laurence Trudel-Vandal, Solange Landreville
PURPOSE: Tissue culture is traditionally performed at atmospheric oxygen concentration (21%), which induces hyperoxic stress, as endogenous physiologic oxygen tension found in tissues varies between 2% and 9%. This discrepancy may lead to misinterpretation of results and may explain why effects observed in vitro cannot always be reproduced in vivo and vice versa. Only a few studies have been conducted in low physiologic oxygen conditions to understand the development and differentiation of cells from the eye...
2017: Molecular Vision
https://www.readbyqxmd.com/read/28343376/ruthenium-106-brachytherapy-with-or-without-additional-local-therapy-showed-favorable-outcome-for-variable-sized-choroidal-melanomas-in-korean-patients
#20
Yeona Cho, Jee Suk Chang, Jin Sook Yoon, Sung Chul Lee, Yong Bae Kim, Joo Ho Kim, Ki Chang Keum
Purpose: To report clinical outcomes of ruthenium-106 (Ru-106) brachytherapy with or without additional local therapy for choroidal melanomas in Korean patients. Materials and Methods: A total of 88 patients diagnosed with choroidal melanomas were treated with Ru-106 brachytherapy between 2006 and 2012. Patients were divided into two groups according to their tumor height: a large group (≥6 mm, n=50) and a small group (<6 mm, n=38). Most patients in the large group received combined therapy with local excision and/or transpupillary thermotherapy...
March 24, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
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