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Choroidal melanoma

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https://www.readbyqxmd.com/read/28298867/stones-bones-groans-thrones-and-psychiatric-overtones-systemic-associations-of-sclerochoroidal-calcification
#1
Jordan A Sugarman, Alexzandra M Douglass, Emil Anthony T Say, Carol L Shields
Sclerochoroidal calcification (SCC) is a frequent masquerader of choroidal melanoma with important systemic associations such as hyperparathyroidism and parathyroid adenoma. Herein, we describe a case of a 67-year-old male who presented with an amelanotic choroidal lesion in the right eye (OD) and a history of kidney stones. Ultrasonography showed the lesion to be flat and calcified OD. Incidentally, a subclinical calcified plaque was also found in the fellow eye. Optical coherence tomography showed an elevated suprachoroidal mass in a table mountain configuration OD and flat configuration left eye, consistent with type 4 and type 1 SCC...
January 2017: Oman Journal of Ophthalmology
https://www.readbyqxmd.com/read/28297329/ocular-brachytherapy-dosimetry-for-103pd-and-125i-in-the-presence-of-gold-nanoparticles-a-monte-carlo-study
#2
Somayeh Asadi, Mehdi Vaez-Zadeh, Mohammad Vahidian, Mahdieh Marghchouei, S Farhad Masoudi
The aim of the present Monte Carlo study is to evaluate the variation of energy deposition in healthy tissues in the human eye which is irradiated by brachytherapy sources in comparison with the resultant dose increase in the gold nanoparticle (GNP)-loaded choroidal melanoma. The effects of these nanoparticles on normal tissues are compared between 103Pd and 125I as two ophthalmic brachytherapy sources. Dose distribution in the tumor and healthy tissues has been taken into account for both brachytherapy sources...
May 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28282699/-diagnostic-approaches-to-suspected-choroidal-melanoma
#3
C Girbardt, M Rehak, P Wiedemann
Whenever funduscopy reveals possible choroidal melanoma, all available information must be gathered to either confirm or exclude the diagnosis. Well-defined funduscopic criteria are available, which can already lead to a high degree of diagnostic certainty. Additional technical examinations can be used to exclude possible differential diagnoses. In cases where no clear diagnosis can be established, it is possible to take a biopsy or to watch and wait in order to observe possible growth. Whenever the diagnosis of a choroidal melanoma is established, cancer staging has to be performed in order to search for possible metastases...
March 10, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28272283/dexamethasone-intravitreal-implant-vs-ranibizumab-in-the-treatment-of-macular-edema-secondary-to-brachytherapy-for-choroidal-melanoma
#4
Andrea Russo, Michele Reibaldi, Teresio Avitabile, Maurizio G Uva, Livio Marco Franco, Caterina Gagliano, Vincenza Bonfiglio, Corrado Spatola, Giuseppe Privitera, Antonio Longo
PURPOSE: To evaluate the efficacy of an intravitreal dexamethasone (Dex) implant 0.7 mg compared with intravitreal ranibizumab (Ra) for the treatment of radiation maculopathy with macular edema secondary to plaque brachytherapy in choroidal melanoma. METHODS: Eight patients were treated with intravitreal Ra, and eight patients received the Dex intravitreal implant. Visual acuity and foveal thickness were evaluated using spectral domain optical coherence tomography...
March 7, 2017: Retina
https://www.readbyqxmd.com/read/28262517/visual-acuity-oncologic-and-toxicity-outcomes-with-103-pd-vs-125-i-plaque-treatment-for-choroidal-melanoma
#5
Kirtesh R Patel, Roshan S Prabhu, Jeffrey M Switchenko, Mudit Chowdhary, Caroline Craven, Pia Mendoza, Hasan Danish, Hans E Grossniklaus, Thomas M Aaberg, Thomas Aaberg, Sahitya Reddy, Elizabeth Butker, Chris Bergstrom, Ian R Crocker
PURPOSE: To evaluate outcomes of choroidal melanoma patients treated with (125)I or (103)Pd plaque brachytherapy. METHODS AND MATERIALS: From 1993 to 2012, our institution treated 160 patients with (103)Pd (56.1%) and 125 patients with (125)I (43.9%) plaque brachytherapy. Tumor outcomes, visual acuity (VA), and toxicity were compared. Multivariate analyses (MVAs) and propensity score analysis were used to help address differences in baseline characteristics. RESULTS: Median followup was longer for (125)I patients, 52...
March 2, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28240745/the-biological-and-prognostic-significance-of-angiotropism-in-uveal-melanoma
#6
Raymond L Barnhill, Mengliang Ye, Aude Batistella, Marc-Henri Stern, Sergio Roman-Roman, Rémi Dendale, Olivier Lantz, Sophie Piperno-Neumann, Laurence Desjardins, Nathalie Cassoux, Claire Lugassy
Angiotropism is a marker of extravascular migration of melanoma cells along vascular and other structures and a prognostic factor in cutaneous melanoma. Because of this biological and prognostic importance in cutaneous melanoma, angiotropism was studied in uveal melanoma (UM). This retrospective study performed at a single ocular oncology referral center included 89 patients from the study period 2006-2008. All patients were diagnosed with UM from the choroid and/or ciliary body. All patients underwent enucleation for prognostic purposes and definitive therapy...
February 27, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/28218368/intravitreal-dexamethasone-implant-ozurdex%C3%A2-for-exudative-retinal-detachment-after-proton-beam-therapy-for-choroidal-melanoma
#7
Ariane Malclès, Anh-Minh Nguyen, Thibaud Mathis, Jean-Daniel Grange, Laurent Kodjikian
PURPOSE: To evaluate the efficacy and safety of intravitreal 0.7-mg dexamethasone implant (DEX-I) (Ozurdex®) in the treatment of extensive exudative retinal detachment (RD) associated with uveal melanoma treated using proton beam therapy (PBT). METHODS: Data from 10 patients with exudative RD after PBT treated with intravitreal injection of 0.7-mg DEX-I were reviewed retrospectively. The main outcome measures were resolution of exudative RD, visual acuity, and safety profile...
February 8, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28211879/evaluation-of-choroidal-tumors-with-optical-coherence-tomography-enhanced-depth-imaging-and-oct-angiography-features
#8
G Cennamo, M R Romano, M A Breve, N Velotti, M Reibaldi, G de Crecchio, G Cennamo
AimTo describe the vascular features of choroidal tumors using enhanced depth imaging (EDI), optical coherence tomography (OCT), and OCT-angiography.MethodsIn this prospective study, we evaluated 116 Caucasian patients with choroidal tumors (60 eyes with choroidal nevi, 40 with choroidal melanoma, 6 with choroidal hemangioma, 2 with optic disc melanocytoma, 6 with choroidal osteoma, and 2 with retinal metastases). Patients underwent a complete ophthalmic examination including bulbar echography, EDI-OCT, OCT-angiography, and multicolor imaging...
February 17, 2017: Eye
https://www.readbyqxmd.com/read/28203054/uveal-melanoma-epidemiology-etiology-and-treatment-of-primary-disease
#9
REVIEW
Benjamin A Krantz, Nikita Dave, Kimberly M Komatsubara, Brian P Marr, Richard D Carvajal
Uveal melanoma (UM) is the most common intraocular malignancy and arises from melanocytes in the iris, ciliary body, or choroid. Early diagnosis and local treatment is crucial, as survival correlates with primary tumor size. However, approximately 50% of patients will develop metastatic disease with 6-12 months' survival from metastatic diagnosis. Genomic analyses have led to the development of gene-expression profiles that effectively predict metastatic progression; unfortunately, no adjuvant therapy has been shown to prolong survival to date...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28203052/early-experiences-of-planning-stereotactic-radiosurgery-using-3d-printed-models-of-eyes-with-uveal-melanomas
#10
Alena Furdová, Miron Sramka, Andrej Thurzo, Adriana Furdová
OBJECTIVE: The objective of this study was to determine the use of 3D printed model of an eye with intraocular tumor for linear accelerator-based stereotactic radiosurgery. METHODS: The software for segmentation (3D Slicer) created virtual 3D model of eye globe with tumorous mass based on tissue density from computed tomography and magnetic resonance imaging data. A virtual model was then processed in the slicing software (Simplify3D(®)) and printed on 3D printer using fused deposition modeling technology...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28192844/-potentials-and-limitations-of-the-detection-of-circulating-melanoma-cells
#11
J Lüke, S Grisanti, A Tura
The detection and characterisation of circulating melanoma cells (CMC) is a non-invasive procedure with a low complication rate and can potentially distinguish choroidal nevi from uveal melanomas and help to initiate early adequate therapy. It has the perspective to select and monitor treatment. This technique may lead to new insights into the metastasis process itself and help to detect specific targets for future therapies. This article introduces the different techniques for CMC detection; their potentials and limitations are discussed...
February 13, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28168935/reproducibility-of-a-noninvasive-system-for-eye-positioning-and-monitoring-in-stereotactic-radiotherapy-of-ocular-melanoma
#12
Omar Iskanderani, Dominique Béliveau-Nadeau, Robert Doucet, Geneviève Coulombe, Deborah Pascale, David Roberge
PURPOSE: Our preferred treatment for juxtapapillary choroidal melanoma is stereotactic radiotherapy. We aim to describe our immobilization system and quantify its reproducibility. MATERIALS AND METHODS: Patients were identified in our radiosurgery database. Patients were imaged at computed tomography simulator with an in-house system which allows visual monitoring of the eye as the patient fixates a small target. All patients were reimaged at least once prior to and/or during radiotherapy...
January 1, 2017: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/28161431/dosimetric-and-radiobiologic-comparison-of-103-pd-coms-plaque-brachytherapy-and-gamma-knife-radiosurgery-for-choroidal-melanoma
#13
Daniel Gorovets, Nolan L Gagne, Christopher S Melhus
PURPOSE: Plaque brachytherapy (BT) and Gamma Knife radiosurgery (GKRS) are highly conformal treatment options for choroidal melanoma. This study objectively compares physical dose and biologically effective dose (BED) distributions for these two modalities. METHODS AND MATERIALS: Tumor and organ-at-risk (OAR) dose distributions from a CT-defined reference right eye were compared between (103)Pd COMS (Collaborative Ocular Melanoma Study Group) plaques delivering 70 Gy (plaque heterogeneity corrected) over 120 h to the tumor apex and GKRS plans delivering 22 Gy to the 40% isodose line for a representative sample of clinically relevant choroidal melanoma locations and sizes...
February 1, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28141766/choroidal-nevus-a-review-of-prevalence-features-genetics-risks-and-outcomes
#14
Jason L Chien, Kareem Sioufi, Thamolwan Surakiatchanukul, Jerry A Shields, Carol L Shields
PURPOSE OF REVIEW: To review the prevalence, clinical features, imaging findings, cytogenetics, and risks and outcomes of choroidal nevus. RECENT FINDINGS: Choroidal nevus is a benign melanocytic tumor, often discovered incidentally on ophthalmic examination. This lesion is generally well circumscribed and pigmented. The prevalence of choroidal nevus in postequatorial region in United States adults (≥40 years old) is approximately 5%. Choroidal nevus is associated with higher lifetime unopposed estrogen and greater BMI...
January 30, 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/28128068/mistletoe-and-garlic-extracts-as-polyurethane-carriers-a-possible-remedy-for-choroidal-melanoma
#15
Melania F Munteanu, Aurel Ardelean, Florin Borcan, Svetlana I Trifunschi, Ramona Gligor, Simona A Ardelean, Dorina Coricovac, Iulia Pinzaru, Florina Andrica, Livia-Cristina Borcan
Melanoma is known as the most dangerous form of skin cancer; whereas the malignant choroidal melanoma is an orphan disease known as the most common primary intraocular malignancy in adults. Literature suggests that the consumption of garlic and/or mistletoe leads to a reduced risk of developing cancer. The obtained microstructures present sizes between 1.05 and 2.60 μm and Zeta potentials between -7 and +36 mV. A good encapsulation was observed on different evaluations (88-92%). It was determined that approx...
January 26, 2017: Current Drug Delivery
https://www.readbyqxmd.com/read/28126270/evisceration-and-ocular-tumors-what-are-the-consequences
#16
S Lemaître, A Lecler, C Lévy-Gabriel, C Reyes, L Desjardins, D Gentien, M Zmuda, P V Jacomet, L Lumbroso-Le Rouic, R Dendale, A Vincent-Salomon, G Pierron, O Galatoire, N Cassoux
PURPOSE: Evisceration can be performed for blind, painful eyes. This surgery can promote the dissemination of tumor cells within the orbit if an ocular tumor has been missed preoperatively. METHODS: We reviewed the medical records of patients who were eviscerated for blind, painful eyes between 2009 and 2014 and who were referred after the surgery to the Institut Curie or the Rothschild Foundation in Paris. We included the patients with a histological diagnosis of ocular tumor or orbital recurrence...
February 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/28101347/clinical-presentation-and-management-of-uveal-melanoma
#17
Abelardo Rodríguez, Alfonso Dueñas-Gonzalez, Sarai Delgado-Pelayo
Uveal melanoma (UM) is the most common primary intraocular malignancy in adults. The majority of the patients are Caucasian (97.8%) and aged 50-80 years. Choroidal melanoma is the predominant type (86.3%). The clinical presentation may range from no symptoms over various types of visual disturbances to visual loss. Examination includes slit-lamp biomicroscopy, indirect ophthalmoscopy and diagnostic testing, such as B-scan ultrasonography. A number of patients with posterior UM are treated with plaque radiation therapy or enucleation...
December 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28060147/myomelanocytic-choroidal-tumor-cytopathologic-diagnosis
#18
Ian M Jaffee, Devron H Char
PURPOSE: Establishing the correct diagnosis of a growing choroidal tumor can be difficult. METHODS: Clinical examination and ultrasound of a patient followed for what was thought to be a uveal melanoma. Fine-needle biopsy established the correct diagnosis. RESULTS: We demonstrate that fine-needle biopsy can correctly identify a very rare tumor, a myomelanocytic neoplasm. CONCLUSION: Myomelanocytic choroidal tumors can be diagnosed on fine-needle biopsy...
February 2017: Retina
https://www.readbyqxmd.com/read/28046832/su-f-t-02-estimation-of-radiobiological-doses-bed-and-eqd2-of-single-fraction-electronic-brachytherapy-that-equivalent-to-i-125-eye-plaque-by-using-linear-quadratic-and-universal-survival-curve-models
#19
Y Kim, T Waldron, E Pennington
PURPOSE: To test the radiobiological impact of hypofractionated choroidal melanoma brachytherapy, we calculated single fraction equivalent doses (SFED) of the tumor that equivalent to 85 Gy of I125-BT for 20 patients. Corresponding organs-at-risks (OARs) doses were estimated. METHODS: Twenty patients treated with I125-BT were retrospectively examined. The tumor SFED values were calculated from tumor BED using a conventional linear-quadratic (L-Q) model and an universal survival curve (USC)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046271/su-f-t-659-nanoparticle-aided-eye-plaque-radiotherapy
#20
J Chin, W Ngwa
PURPOSE: Eye plaque brachytherapy is one of the approaches for radiotherapy treatment for ocular cancers: retinoblastoma and choroidal melanoma. This study, investigates the potential benefits of using gold nanoparticles to enhance therapeutic efficacy during eye plaque brachytherapy. METHODS: The EYE PHYSICS Inc. Plaque Simulator program distributed by IsoAid, LLC, Port Richey, Florida was used. It is based on the superposition of dose contributions from individual seeds following the TG-43 formalism...
June 2016: Medical Physics
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