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Choroidal melanoma

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https://www.readbyqxmd.com/read/28926332/-choroidal-melanoma
#1
REVIEW
Inês Coutinho, Tânia Teixeira, Paulo César Simões, João Casalta Lopes, Margarida Borrego, Júlia Fernandes, João Cabral, Isabel Prieto, Rui Proença
Choroidal melanoma is the most common primary intraocular malignant tumor in adults. None of the different treatments available offers advantages of survival, resorting more and more to conservative treatments such as brachytherapy, which has been available in Portugal since 2013. In this article we review the clinical characteristics, risk factors, diagnosis, complementary exams and therapeutic options in choroidal melanoma.
August 31, 2017: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28910160/a-novel-approach-to-the-differentiation-of-intrabulbar-tumors-in-color-doppler-imaging
#2
Monika Modrzejewska, Marta P Wiącek
AIM OF THE STUDY: The similarity of many benign intrabulbar lesions to a malignant tumor requires detailed differential diagnostics. However, none of the known methods can be used as the only one to determine the type of lesions. The aim of this study was to determine color Doppler imaging (CDI) markers characteristic of choroidal melanoma and metastatic intrabulbar tumors, increasing the diagnostic value and giving a new insight into the use of this method. MATERIALS AND METHODS: CDI was performed in 44 patients with malignant tumors and in 49 patients with benign tumors...
September 14, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28868288/uveal-melanoma-with-histopathologic-intratumoral-heterogeneity-associated-with-gene-expression-profile-discordance
#3
Audra K Miller, Matthew J Benage, David J Wilson, Alison H Skalet
PURPOSE: To report a case of intratumoral gene expression profile discordance in a malignant uveal melanoma, associated with intratumoral heterogeneity based upon histopathologic features. METHODS: The clinical history, fundus findings, imaging and histopathologic features, and DecisionDx-UM gene expression profile results (Castle Biosciences, Inc., Phoenix, AZ, USA) of the tumor were reviewed. RESULTS: A trans-retinal fine-needle aspiration biopsy was performed for a thin, pigmented choroidal tumor in a 33-year-old man...
July 2017: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/28868286/clinical-and-spectral-domain-optical-coherence-tomography-appearance-of-optic-disc-melanocytoma-a-new-classification-and-differentiation-from-pigmented-choroidal-lesions
#4
Supanut Apinyawasisuk, Tara McCannel, Anthony C Arnold
AIMS: The aim of this paper was to compare the features of both the classic, darkly pigmented and the atypical, more lightly pigmented optic disc melanocytoma with those of pigmented choroidal lesions. METHODS: We analyzed the spectral-domain optical coherence tomography (SD-OCT) features of 9 eyes with optic disc melanocytoma and compared them with those of choroidal melanoma and nevus. RESULTS AND CONCLUSION: We identified 2 categories of SD-OCT findings in optic disc melanocytoma: (a) type 1, the typical, prominent, hyperpigmented lesion with SD-OCT findings of a hyperreflective, disorganized overlying retina and a posterior hyporeflective shadow, and (b) the less common, atypical, minimally pigmented type 2 lesion overlaid by a relatively well-organized retina that lacks a posterior hyporeflective shadow...
July 2017: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/28868276/uveal-melanoma-regression-after-brachytherapy-relationship-with-chromosome-3-monosomy-status
#5
Sachin M Salvi, Hassan A Aziz, Suhail Dar, Nakul Singh, Brandy Hayden-Loreck, Arun D Singh
AIM: The objective was to evaluate the relationship between the regression rate of ciliary body melanoma and choroidal melanoma after brachytherapy and chromosome 3 monosomy status. METHODS: We conducted a prospective and consecutive case series of patients who underwent biopsy and brachytherapy for ciliary/choroidal melanoma. Tumor biopsy performed at the time of radiation plaque placement was analyzed with fluorescence in situ hybridization to determine the percentage of tumor cells with chromosome 3 monosomy...
July 2017: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/28863158/c-flip-and-the-noxa-mcl-1-axis-participate-in-the-synergistic-effect-of-pemetrexed-plus-cisplatin-in-human-choroidal-melanoma-cells
#6
Xiaofei Zhao, Feng Kong, Lei Wang, Han Zhang
Choroidal melanoma is the most common primary malignant intraocular tumor, and very few effective therapies are available to treat it. Our study aimed to understand whether pemetrexed plus cisplatin exerts a beneficial synergistic effect in human choroidal melanoma cells and to delineate the underlying molecular mechanism. To accomplish these aims, we treated choroidal melanoma cells with pemetrexed and cisplatin and assessed cell survival with SRB and MTT assays. Proteins were detected using western blotting analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28860706/investigation-into-the-quantitative-and-qualitative-characteristics-of-choroidal-melanoma-through-magnetic-resonance-imaging-and-b-scan-ultrasound
#7
Vassilis Papayiannis, Konstantinos T Tsaousis, Constantinos A Kouskouras, Afroditi Haritanti, Vasilios F Diakonis, Ioannis T Tsinopoulos
OBJECTIVE: To investigate the homogeneity and vascularity of choroidal melanoma through magnetic resonance imaging (MRI) and brightness modulation (B-mode) ultrasound scan and their correlation with dimensions of tumor, as well as to measure the sensitivity of both modalities in retinal detachment (RD) detection. MATERIALS AND METHODS: This retrospective chart review included patients diagnosed with choroidal melanoma. All these patients underwent MRI scans using T2-weighted (T2-WI) and T1-weighted (T1-WI) sequences, before and after an intravenous injection of paramagnetic contrast material...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28809862/gnaq-and-gna11-mutations-and-downstream-yap-activation-in-choroidal-nevi
#8
M J C Vader, M C Madigan, M Versluis, H M Suleiman, G Gezgin, N A Gruis, J J Out-Luiting, W Bergman, R M Verdijk, M J Jager, P A van der Velden
BACKGROUND: Mutations in GNAQ/11 genes are considered an early event in the development of uveal melanoma that may derive from a pre-existing nevus. The Hippo pathway, by way of YAP activation, rather than MAP kinase, has a role in the oncogenic capacity of GNAQ/11 mutations. METHODS: We investigated 16 nevi from 13 human eyes for driver GNAQ/11 mutations using droplet digital PCR and determined whether nevi are clonal by quantifying mutant nevus cell fractions...
September 5, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28803175/seeding-of-abdomen-with-primary-intracranial-hemangiopericytoma-by-a-ventriculoperitoneal-shunt-case-report
#9
Kelly Bridges, Rebecca Sauerwein, Marjorie Grafe, Vassiliki Liana Tsikitis, Aaron Halfpenny, Ahmed Raslan
BACKGROUND: Ventriculoperitoneal shunt (VPS) placement has been implicated in extraneural metastasis of many primary central nervous system tumors. Reported cases include, but are not limited to, medulloblastoma, germ cell tumor, astrocytoma, oligodendroglioma, lymphoma, ependymoma, melanoma, and choroid plexus tumors. However, a literature review reveals no reported cases of extraneural metastasis of solitary fibrous tumor/hemangiopericytoma (SFT/HPC). CASE DESCRIPTION: Here we report the case of a 34-year-old man with recurrent intracranial malignant SFT/HPC who had undergone surgical tumor resection and subsequent placement of a VPS for obstructive hydrocephalus in 2004...
August 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28777388/choroidal-neovascularization-in-multifocal-choroiditis-after-dabrafenib-and-trametinib
#10
Giorgia C Albertini, Eleonora Corbelli, Maurizio Battaglia Parodi, Francesco Bandello
PURPOSE: To describe a case of bilateral choroidal neovascularization (CNV) in multifocal choroiditis (MFC) associated with dabrafenib and trametinib chemotherapy for metastatic melanoma. CASE: We present a case of a 57-year-old man with MFC who underwent combination therapy with dabrafenib plus trametinib for metastatic melanoma. The patient presented to our ophthalmology department complaining of bilateral vision loss of 2 days' duration. He underwent multimodal imaging showing a MFC reactivation complicated by bilateral CNV...
August 2, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28743137/-surgical-methods-in-the-treatment-of-uveal-melanoma
#11
Georgios Blatsios, Gertrud Haas, Claus Zehetner, Nikolaos E Bechrakis
Significant advancements have been made in the last decades in the treatment of uveal melanoma. Radiation therapy can achieve, depending on the method, local tumour control in up to 98% of cases. Surgical modalities have been implemented in the ocular therapy for uveal melanoma either to treat/prevent radiation complications, such as so-called toxic tumour syndrome, or to primarily treat the tumour with or without adjunctive radiotherapy. These include endoresection and transscleral resection for melanomas of the choroid/ciliary body or irido-trabeculo-cyclectomy for melanomas of the iris-ciliary body...
July 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28730794/athens-eye-hospital-ocular-oncology-multidisciplinary-team-providing-combined-treatments-for-patients-with-choroidal-melanoma-3-years-results
#12
Anastasios Anastasakis, Panagiotis Zafeirakis, Charalampos Livir-Rallatos, Gerasimos Livir-Rallatos
No abstract text is available yet for this article.
May 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28730793/athens-eye-hospital-ocular-oncology-multidisciplinary-team-providing-combined-treatments-for-patients-with-choroidal-melanoma-3-years-results
#13
Anastasios Anastasakis, Panagiotis Zafeirakis, Charalampos Livir-Rallatos, Gerasimos Livir-Rallatos, Mutlu Hayran
No abstract text is available yet for this article.
May 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28728906/surgical-management-of-strabismus-following-choroidal-melanoma-plaque-brachytherapy
#14
Shatha H Alfreihi, Stacy L Pineles, Tara A McCannel, Angelica M Prada, Federico G Velez
PURPOSE: To characterize intraoperative findings, surgical approach, and postoperative outcomes in patients undergoing strabismus surgery following plaque brachytherapy for ocular melanoma. METHODS: The records of all patients who underwent plaque brachytherapy for choroidal melanoma between May 2007 and June 2016 were reviewed retrospectively to identify those who subsequently required strabismus surgery. RESULTS: Of the 461 patients who underwent plaque brachytherapy during the study period, 13 (2...
July 18, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28725254/interacts-interventional-radiotherapy-active-teaching-school-guidelines-for-quality-assurance-in-choroidal-melanoma-interventional-radiotherapy-brachytherapy-procedures
#15
REVIEW
Luca Tagliaferri, Monica Maria Pagliara, Luca Boldrini, Carmela Grazia Caputo, Luigi Azario, Maura Campitelli, Maria Antonietta Gambacorta, Daniela Smaniotto, Vincenzo Frascino, Francesco Deodato, Alessio Giuseppe Morganti, György Kovács, Vincenzo Valentini, Maria Antonietta Blasi
Eye plaque brachytherapy represents a safe and effective therapeutic approach for choroidal melanoma, combining clinical outcomes with an eye and visual preservation. As it represents a complex procedure, a specific quality assurance program is strongly suggested to improve patients and operators safety, and to reduce possible complications linked to surgical procedure and radiation exposure. The aim of this paper is to describe the INTERACTS (Interventional Radiotherapy Active Teaching School) guidelines for quality assurance in choroidal melanoma interventional radiotherapy (brachytherapy) used in our institution...
June 2017: Journal of Contemporary Brachytherapy
https://www.readbyqxmd.com/read/28721444/neovascular-glaucoma-after-proton-beam-therapy-of-choroidal-melanoma-incidence-and-risk-factors
#16
Aline I Riechardt, Daniel Pilger, Dino Cordini, Ira Seibel, Enken Gundlach, Annette Hager, Antonia M Joussen
PURPOSE: To analyze the risk factors for the development of neovascular glaucoma (NVG) of patients with choroidal melanoma after proton beam therapy (PBT). METHOD: Clinical case series, retrospective study. We evaluated 629 consecutive patients receiving proton beam therapy for the treatment of a choroidal melanoma at the oncology service at Charité, Berlin and Helmholtz-Zentrum, Berlin between 05/1998 and 11/2008 regarding the development and risk factors of NVG...
July 18, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28719046/retinal-pigment-epithelium-adenoma-in-vitreous-fluid-cytology
#17
Sandhya John, Madelyn Lew
Ocular cytology specimens are relatively uncommon, adding to the difficulty of their evaluation by cytopathologists. While melanomas account for a majority of primary intraocular pigmented lesions, other diagnostic considerations must be included in the differential. This brief report highlights a case of a pigmented ocular lesion in a 24-year-old man and key morphologic, immunohistochemical, and clinical differences between melanoma, melanocytoma, choroidal nevus, and retinal pigment epithelium (RPE) adenoma...
July 18, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28706436/the-presence-of-kynurenine-aminotransferases-in-the-human-cornea-evidence-from-bioinformatics-analysis-of-gene-expression-and-immunohistochemical-staining
#18
Anna Matysik-Woźniak, Anselm Jünemann, Waldemar A Turski, Artur Wnorowski, Krzysztof Jóźwiak, Roman Paduch, Etsuo Okuno, Joanna Moneta-Wielgoś, Tomasz Chorągiewicz, Ryszard Maciejewski, Robert Rejdak
PURPOSE: Kynurenine aminotransferases (KATs) catalyze the synthesis of kynurenic acid (KYNA), a compound of significant biological activity. The aim of this study is to investigate the presence and distribution of KAT immunoreactivity in the healthy human cornea. METHODS: Data on gene expression in human eye structures were extracted from public microarray experiments using Genevestigator software. Immunohistochemistry was conducted using polyclonal antibodies against KAT I, II, and III on sections of eight enucleated eyes from patients with choroidal melanoma...
2017: Molecular Vision
https://www.readbyqxmd.com/read/28704910/late-developing-metastatic-malignant-melanoma-in-the-thoracic-spine-originating-from-choroidal-melanoma
#19
Jun Kyu Hwang, Kyung Hyun Kim, Ji Sup Kim, Sung Jun Ahn, Sung Uk Kuh
A 54-year-old woman visited Gangnam Severance Hospital for left side flank pain. She had a history of total removal of malignant melanoma on the left eye ball 20 years prior. No evaluation had been performed since then. A paravertebral mass at thoracic ninth level (T9) was discovered on spinal magnetic resonance imaging, and pathology confirmed malignant melanoma. Following positron emission tomography-computed tomography, no other metastasis was discovered. After removal of the paravertebral mass, palliative chemotherapy (dacabarzine + tamoxifene) was administered in 3 cycles over 2 months...
June 2017: Korean Journal of Spine
https://www.readbyqxmd.com/read/28700778/frequent-gnaq-gna11-and-eif1ax-mutations-in-iris-melanoma
#20
Simone L Scholz, Inga Möller, Henning Reis, Daniela Süßkind, Johannes A P van de Nes, Sonia Leonardelli, Bastian Schilling, Elisabeth Livingstone, Tobias Schimming, Annette Paschen, Antje Sucker, Rajmohan Murali, Klaus-Peter Steuhl, Dirk Schadendorf, Henrike Westekemper, Klaus G Griewank
Purpose: The most common malignant intraocular tumors with a high mortality in adults are uveal melanomas. Uveal melanomas arise most frequently in the choroid or ciliary body (97%) and rarely in the iris (3%). Whereas conjunctival and posterior uveal (ciliary body and choroidal) melanomas have been studied in more detail genetically, little data exist regarding iris melanomas. Methods: In our study, we genetically analyzed 19 iris melanomas, 8 ciliary body melanomas, 3 ring melanomas, and 4 iris nevi...
July 1, 2017: Investigative Ophthalmology & Visual Science
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