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Choroidal melanoma

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https://www.readbyqxmd.com/read/28611640/visual-loss-from-choroidal-melanoma-mimicking-neurological-syndromes
#1
Karim Hammamji, Ehud Reich, Amit Arora, Victoria M L Cohen, Mandeep S Sagoo
Melanoma of the eye is rare, but can mimic a range of disorders. This report highlights 2 cases of choroidal melanoma with vision loss mimicking neurological diagnoses. The first patient is a 41-year-old white male with a known history of multiple sclerosis and a previous episode of optic neuritis in the right eye, who presented with a 6-month history of decreased vision in the same eye, and occasional photopsiae. He was treated with 2 courses of oral steroids for presumed recurrent optic neuritis. After a temporary improvement in his symptoms, his vision worsened, following which he had a head MRI, which revealed a solid intraocular mass...
January 2017: Case Reports in Neurology
https://www.readbyqxmd.com/read/28599417/overexpression-of-the-anti-apoptotic-protein-bag3-in-human-choroidal-melanoma-a-case-report
#2
Tatsuya Yunoki, Yoshiaki Tabuchi, Takashi Kondo, Yoko Ishii, Atsushi Hayashi
Bcl-2-associated athanogene 3 (BAG3), a co-chaperone of heat shock protein 70 (HSP70), exerts anti-apoptotic effects in various malignant tumors. However, relationships between choroidal melanoma and BAG3 are poorly studied. This study investigated the expression of BAG3 in a case of human choroidal melanoma. Funduscopy, computed tomography, and single-photon emission computed tomography with the intravenous injection of N-isopropyl-p-[(123)I] iodoamphetamine strongly indicated choroidal melanoma in a 68-year-old woman...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28599335/-current-diagnosis-of-choroidal-nevi
#3
J Lüke, S Grisanti, A Tura
Despite the diversity of techniques for documentation and diagnostics of choroidal nevi, the differential diagnosis, especially regarding small uveal melanomas, remains difficult. In many cases, frequent controls to exclude growth or for the detection of an unchanged appearance are recommended. This article reviews-under consideration of the actual literature-different diagnostic techniques for documentation and differentiation of choroidal nevi.
June 9, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28597076/juxtapapillary-and-circumpapillary-choroidal-melanoma-globe-sparing-treatment-outcomes-with-iodine-125-notched-plaque-brachytherapy
#4
John V Hegde, Tara A McCannel, Colin A McCannel, James Lamb, Pin-Chieh Wang, Darlene Veruttipong, Robert Almanzor, D Jeffrey Demanes, Mitchell Kamrava
PURPOSE: Managing juxtapapillary and circumpapillary choroidal melanoma with brachytherapy is challenging because of technical complications with accurate plaque placement and high radiation toxicity given tumor proximity to the optic nerve. We evaluated our center's experience using ultrasound-guided, Iodine (I)-125 notched plaque brachytherapy for treating choroidal melanoma contiguous with (juxtapapillary) and at least partially surrounding the optic disc (circumpapillary). METHODS: All cases of choroidal melanoma treated with I-125 notched plaque brachytherapy at our center from September 2003-December 2013 were retrospectively reviewed...
June 9, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28596284/prognostic-biopsy-of-choroidal-melanoma-an-optimised-surgical-and-laboratory-approach
#5
Martina Angi, Helen Kalirai, Azzam Taktak, Rumana Hussain, Carl Groenewald, Bertil E Damato, Heinrich Heimann, Sarah E Coupland
BACKGROUND: Accurate survival prognostication for patients with uveal melanoma (UM) enables effective patient counselling and permits personalised systemic surveillance for the early detection of metastases and, in high-risk patients, enrolment in any trials of systemic adjuvant therapy. The aim of this work is to determine the success of prognostic UM tumour biopsy using an improved surgical approach and optimised sample handling workflow. METHODS: Patients with UM treated by primary radiotherapy between 2011 and 2013 and who underwent a prognostic biopsy with cytology, multiplex ligation-dependent probe amplification and/or microsatellite analysis were included...
June 8, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28579218/choroidal-nevus-or-melanoma-choroidal-neovascularisation-as-a-confounder-in-choroidal-nevus
#6
O Subira, H Brosa, D Lorenzo, J M Caminal
No abstract text is available yet for this article.
May 31, 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/28572063/pattern-of-local-recurrence-after-i-125-episcleral-brachytherapy-for-uveal-melanoma-in-a-spanish-referral-ocular-oncology-unit
#7
Sara Sánchez-Tabernero, Ciro García-Alvarez, Ma Fe Muñoz-Moreno, Patricia Diezhandino, Pilar Alonso-Martínez, Jesus M de Frutos-Baraja, Francisco López-Lara, Maria A Saornil
PURPOSE: To describe the time, frequency, and clinical characteristics of treatment failure after I-125 brachytherapy in patients with uveal melanoma treated and followed in a Spanish referral ocular oncology unit. DESIGN: Prospective, consecutive, interventional case series. METHODS: Patients diagnosed with uveal melanoma from 1995 to 2016 and treated with episcleral brachytherapy were included. Demographic data collection, ophthalmic evaluation, ultrasound scan, and systemic studies were performed at baseline, every six months thereafter for five years, and subsequently at annual intervals...
May 29, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28565863/gambogenic-acid-induces-cell-growth-inhibition-cell-cycle-arrest-and-metastasis-inhibition-in-choroidal-melanoma-in-a-dose-dependent-manner
#8
Fenghua Li, Yansa Wang, Ying Yan
The aim of the present study was to explore the effects of gambogenic acid (GNA) on the malignant behaviors of choroidal melanoma cells, including cell viability, cell cycle, migration and invasion, and to elucidate the underlying regulatory mechanism. The human choroidal melanoma cell line OCM-1 was treated with different concentrations of GNA and cell viability, colony formation ability, cell cycle, migration and invasion were analyzed. Additionally, cells were incubated with or without LY294002, a specific inhibitor of the phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt) signaling pathway, for 24 h...
May 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28542696/incorporating-clinical-histological-and-genetic-parameters-for-choroidal-melanoma-prognostication
#9
Sarah E Coupland, Azzam Taktak, Bertil Damato
No abstract text is available yet for this article.
May 25, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28542673/incorporating-clinical-histological-and-genetic-parameters-for-choroidal-melanoma-prognostication-reply
#10
J William Harbour
No abstract text is available yet for this article.
May 25, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28541267/choroidal-melanoma-sector-melanocytosis-and-retinal-pigment-epithelial-microdetachments-in-birt-hogg-dub%C3%A3-syndrome
#11
Charlotte L Marous, Molly R Marous, R Joel Welch, Jerry A Shields, Carol L Shields
PURPOSE: Birt-Hogg-Dubé Syndrome (BHDS) is a rare autosomal dominant condition that can predispose patients to numerous cutaneous fibrofolliculomas and other cutaneous lesions, pulmonary cysts with spontaneous pneumothorax, and multifocal renal tumors and cancer. The genetic mutations responsible for BHDS are related to tumor suppression and the mammalian target of rapamycin (mTOR) pathway. Previous reports of the ocular findings in BHDS include eyelid fibrofolliculomas, "flecked chorioretinopathy," and one report of choroidal melanoma...
May 22, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28529590/cepharanthine-exerts-antitumor-activity-on-choroidal-melanoma-by-reactive-oxygen-species-production-and-c-jun-n-terminal-kinase-activation
#12
Qi Zhu, Baofeng Guo, Linlin Chen, Qiuye Ji, Hang Liang, Naiyan Wen, Ling Zhang
Choroidal melanoma is the most common primary intraocular tumor in adults. Cepharanthine (CEP), a natural alkaloid extracted from the roots of Stephania cepharantha Hayata, has been demonstrated to inhibit the proliferation of various cancer cells. However, its potential anticancer effect in choroidal melanoma has not been clarified yet. In the present study, it was identified that CEP may potently inhibit the proliferation of human choroidal melanoma cells, induce cell death and cell cycle arrest, and activate cellular apoptotic proteins, including Bcl-2-associated X protein, caspase and poly(ADP-ribose) polymerase...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28520637/clinical-experience-of-stereotactic-radiosurgery-at-a-linear-accelerator-for-intraocular-melanoma
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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...
July 2017: Retina
https://www.readbyqxmd.com/read/28470645/calcified-non-pigmented-choroidal-melanoma-report-of-a-rare-case
#19
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
#20
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
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