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Iris melanoma

Arun D Singh, William J Dupps, Charles V Biscotti, John H Suh, Kira L Lathrop, John P Nairn, Helen Shih
PURPOSE: To report the outcome after limbal stem cell preservation during proton beam irradiation for diffuse iris melanoma. METHODS: This is a single-case report of diffuse iris melanoma that was managed with proton beam radiation (53 Gy), wherein preemptively harvested superior and inferior limbal stem cells before radiation were replaced after irradiation. Regeneration of the palisades of Vogt and the limbal stem cells was documented by an optical coherence tomography-based imaging protocol...
October 14, 2016: Cornea
S Ajamil Rodanés, C García-Álvarez, M A Saornil Alvarez, F López-Lara, J M Frutos Baraja, M Quiñones
CLINICAL CASE: A 35-year-old male with unilateral ocular hypertension in the right eye (RE). Anterior segment examination of the RE showed a melanotic lesion. Intraocular pressure (IOP) was 40mmHg in RE. Gonioscopy revealed extension into the anterior chamber angle. Excisional biopsy was performed and consistent with iris melanoma and secondary melanomalytic glaucoma. Brachytherapy was performed as adjuvant therapy. DISCUSSION: In patients presenting with unilateral glaucoma and increased pigmentation in the trabecular meshwork, it is crucial to perform imaging studies...
October 13, 2016: Archivos de la Sociedad Española de Oftalmología
Teresa Deinlein, Rainer Hofmann-Wellenhof, Iris Zalaudek
No abstract text is available yet for this article.
November 2016: Journal of the American Academy of Dermatology
S Schmitzer, C Butea-Simionescu, A Gheorghe, M Zemba, M Cioboata
Iris and ciliary body melanoma is an aggressive tumor, which, unfortunately, presents symptoms only in advanced stages and is often discovered accidentally during a routine eye examination. There are several treatment options, ranging from in time monitorization in order to observe the tumor's evolution to more aggressive methods such as radiotherapy and enucleation. We present a case of iridociliary melanoma, who underwent conservative surgery, iridocyclectomy under scleral flap, with good results, and maintenance of the function and integrity of the eyeball...
January 2016: Journal of Medicine and Life
S Ajamil Rodanés, C García-Álvarez, M A Saornil Álvarez
No abstract text is available yet for this article.
September 21, 2016: Archivos de la Sociedad Española de Oftalmología
Djoke Hendriks, Yuan He, Iris Koopmans, Valerie R Wiersma, Robert J van Ginkel, Douwe F Samplonius, Wijnand Helfrich, Edwin Bremer
Antibodies that block PD-L1/PD-1 immune checkpoints restore the activity of functionally-impaired antitumor T cells. These antibodies show unprecedented clinical benefit in various advanced cancers, particularly in melanoma. However, only a subset of cancer patients responds to current PD-L1/PD-1-blocking strategies, highlighting the need for further advancements in PD-L1/PD-1-based immunotherapy. Here, we report on a novel approach designed to combine PD-L1 checkpoint inhibition with the tumor-selective induction of apoptosis by TNF-related Apoptosis Inducing Ligand (TRAIL)...
August 2016: Oncoimmunology
Stefania Borsari, Riccardo Pampena, Aimilios Lallas, Athanassios Kyrgidis, Elvira Moscarella, Elisa Benati, Margherita Raucci, Giovanni Pellacani, Iris Zalaudek, Giuseppe Argenziano, Caterina Longo
Importance: Reflectance confocal microscopy (RCM) improves diagnostic accuracy in skin cancer detection when combined with dermoscopy; however, little evidence has been gathered regarding its real impact on routine clinical workflow, and, to our knowledge, no studies have defined the terms for its optimal application. Objective: To identify lesions on which RCM performs better in terms of diagnostic accuracy and consequently to outline the best indications for use of RCM...
October 1, 2016: JAMA Dermatology
Ahmed Zewar, Ibrahim Nawaiseh, Imad Jaradat, Jakub Khzouz, Khaleel Alrawashdeh, Ghadeer Abdeen, Mustafa Mehyar, Samer Khurma, Yacoub A Yousef
OBJECTIVE: The aim of this study was evaluate the features and outcome of management of uveal melanoma in King Hussein Cancer Center as an example of a referral tertiary cancer center in the Middle East. MATERIAL AND METHOD: This was aetrospective, observational case series of 46 eyes of 46 patients with uveal melanoma. Data collection required access to medical records, radiology and pathology reports, and laboratory results. The main outcome measures included age at diagnosis, tumor location and dimensions, TNM stage, treatment modality, visual outcome, metastasis, and mortality...
2016: Türk Patoloji Dergisi
Shani Dror, Laureen Sander, Hila Schwartz, Danna Sheinboim, Aviv Barzilai, Yuval Dishon, Sebastien Apcher, Tamar Golan, Shoshana Greenberger, Iris Barshack, Hagar Malcov, Alona Zilberberg, Lotan Levin, Michelle Nessling, Yael Friedmann, Vivien Igras, Ohad Barzilay, Hananya Vaknine, Ronen Brenner, Assaf Zinger, Avi Schroeder, Pinchas Gonen, Mehdi Khaled, Neta Erez, Jörg D Hoheisel, Carmit Levy
Melanoma originates in the epidermis and becomes metastatic after invasion into the dermis. Prior interactions between melanoma cells and dermis are poorly studied. Here, we show that melanoma cells directly affect the formation of the dermal tumour niche by microRNA trafficking before invasion. Melanocytes, cells of melanoma origin, are specialized in releasing pigment vesicles, termed melanosomes. In melanoma in situ, we found melanosome markers in distal fibroblasts before melanoma invasion. The melanosomes carry microRNAs into primary fibroblasts triggering changes, including increased proliferation, migration and pro-inflammatory gene expression, all known features of cancer-associated fibroblasts (CAFs)...
September 2016: Nature Cell Biology
Rosario Caltabiano, Lidia Puzzo, Valeria Barresi, Antonio Ieni, Carla Loreto, Giuseppe Musumeci, Paola Castrogiovanni, Marco Ragusa, Pietro Foti, Andrea Russo, Antonio Longo, Michele Reibaldi
Uveal melanoma is the most frequent primary intraocular neoplasm in adults. Although malignant melanoma may be located at any point in the uveal tract, the choroid and ciliary body are more frequent locations than the iris. In the present study, we examined ADAM10 expression levels in primary uveal melanoma both with and without metastasis, and we evaluated their association with other high risk characteristics for metastasis in order to assess if ADAM10 can be used to predict metastasis. This study included a total of 52 patients, 23 men and 29 women, with uveal melanoma...
August 9, 2016: Pathology, Research and Practice
Adil I Daud, Kimberly Loo, Mariela L Pauli, Robert Sanchez-Rodriguez, Priscila Munoz Sandoval, Keyon Taravati, Katy Tsai, Adi Nosrati, Lorenzo Nardo, Michael D Alvarado, Alain P Algazi, Miguel H Pampaloni, Iryna V Lobach, Jimmy Hwang, Robert H Pierce, Iris K Gratz, Matthew F Krummel, Michael D Rosenblum
BACKGROUND: Immune checkpoint blockade is revolutionizing therapy for advanced cancer, but many patients do not respond to treatment. The identification of robust biomarkers that predict clinical response to specific checkpoint inhibitors is critical in order to stratify patients and to rationally select combinations in the context of an expanding array of therapeutic options. METHODS: We performed multiparameter flow cytometry on freshly isolated metastatic melanoma samples from 2 cohorts of 20 patients each prior to treatment and correlated the subsequent clinical response with the tumor immune phenotype...
September 1, 2016: Journal of Clinical Investigation
Renáta Zsanett Csoma, Edit Tóth-Molnár, Anita Varga, Hajnalka Szabó, Hajnalka Orvos, Lajos Kemény, Judit Oláh
BACKGROUND: The similar genetic background of a pair of twins, and the similar environmental impacts to which they are exposed allow an exact and objective investigation of various constitutional and environmental factors in naevus development. As far as we are aware, this is the first published survey that simultaneously examines cutaneous and ocular pigmented lesions in an appreciable sample of identical and non-identical twins. METHODS: 172 pairs of twins of Caucasian origin were included in this study...
2016: PloS One
Lee S Rosen, Patricia LoRusso, Wen Wee Ma, Jonathan W Goldman, Amy Weise, A Dimitrios Colevas, Alex Adjei, Salim Yazji, Angela Shen, Stuart Johnston, Hsin-Ju Hsieh, Iris T Chan, Branimir I Sikic
Objective Cobimetinib, a MEK1/2 inhibitor, was administered to patients with advanced solid tumors to assess safety, pharmacokinetics, pharmacodynamics, and anti-tumor activity. Methods For dose-escalation, a 3 + 3 design was used. Oral cobimetinib was administered once daily on a 21-day on/7-day off (21/7) or a 14-day on/14-day off (14/14) schedule. Serial plasma samples were collected for pharmacokinetic (PK) analysis on Day 1 and at steady state. In expansion stages, patients with RAS or RAF mutant tumors were treated at the maximum tolerated dose (MTD) of the 21/7 or 14/14 schedule...
October 2016: Investigational New Drugs
Xiao Qiang Li, Steffen Heegaard, Jens Folke Kiilgaard, Inger Christine Munch, Michael Larsen
PURPOSE: This study compared in vivo enhanced-depth imaging optical coherence tomography (EDI-OCT) with ex vivo histology of the choroid in human eyes. METHODS: Three eyes in three patients with advanced iris melanoma without posterior segment involvement underwent EDI-OCT less than 24 hours prior to enucleation and, in one eye, immediately after enucleation. Following fixation in 4% buffered formaldehyde and paraffin embedding, serial sections of the whole eye were cut horizontally, mounted, stained with hematoxylin-eosin and digitized...
July 1, 2016: Investigative Ophthalmology & Visual Science
I L Birker, L S T M Boons, G P M Luyten
A 20-year-old woman with congenital iris heterochromia presented with loss of vision of her right eye. We made de diagnosis of a large 'uvea melanoma' and enucleated the eye. Pathological examination showed an underlying oculodermal melanocytosis (ODM). The life-time risk of uveal melanoma in the general population is 0.7:100,000, but 1:400 in patients with ODM. Therefore, annual fundoscopy is recommended in these patients.
2016: Nederlands Tijdschrift Voor Geneeskunde
J David Saldaña-Garrido, María C Martínez-Hergueta, M Magdalena Martínez-Rubio
CASE REPORT: The case is presented of a patient with diagnosis of iris nevus in the left eye in youth with a poor follow-up, who referred a decreased visual acuity in that eye. A hyphaema and a 3×4×3mm nodule with irregular pigmentation was observed. Excision of the tumour and histological analysis confirmed the suspicion of iris melanoma in stage Ia. DISCUSSION: Despite the low grade malignancy of iris melanoma and the low frequency of transformation of iris nevus into melanoma, a follow-up is required for its early diagnosis and treatment...
June 1, 2016: Archivos de la Sociedad Española de Oftalmología
Hassan A Aziz, Yasha S Modi, Thomas P Plesec, Arun D Singh
PURPOSE: To report a case of an amelanotic irido-ciliary ring melanoma. DESIGN: Interventional case report. RESULTS: A 44-year-old male was followed for asymptomatic amelanotic iris nevus of the right eye that was noted to have a localized ciliary body mass with ring extension along the trabecular meshwork. Fine needle aspiration biopsy was consistent with malignant melanoma. The patient underwent enucleation and remains disease free at 9 years of follow-up...
April 2016: Ocular Oncology and Pathology
Iris M C van der Ploeg, Max F Madu, Jos A van der Hage, Michel W J M Wouters, W Martin C Klop, Bernies van der Hiel, Bart A van de Wiel, Alexander J C van Akkooi
Sentinel node biopsy is a widely used staging procedure in melanoma. It is usually performed using the triple technique: lymphatic mapping after injection of a radiopharmaceutical, blue dye injection, and the use of a gamma probe. Blue dye offers visual confirmation of the location of the sentinel lymph node (SN). There are some disadvantages such as blurring of the surgical field, skin coloring, and possible anaphylactic reactions. We aimed to answer the question whether patent blue is truly necessary for correct intraoperative identification of the SN...
October 2016: Melanoma Research
Paul T Finger, Tatyana Milman
PURPOSE: To describe a minimally invasive method to create multifocal full-thickness surgical iridectomy biopsies. METHODS: Seven patients suspected to have diffuse iris melanoma underwent multifocal surgical iridectomy biopsy through a single 1.0-mm clear corneal incision. A 25-G inked trocar was used to create one visible corneal portal, through which the anterior chamber was filled with sodium hyaluronate 1%. Then, a 25-G aspiration cutter probe was introduced through the corneal incision such that the aspiration portal was occluded by the iris biopsy sites...
May 21, 2016: European Journal of Ophthalmology
Annie L Wang, Thomas Kern
Melanocytic neoplasms in veterinary species occur in various ophthalmic locations including the eyelid, conjunctiva, cornea, sclera, anterior and posterior uvea, and orbit. Histology usually provides the definitive diagnosis for melanocytic ocular neoplasias. The degree of tissue invasiveness and anaplastic cellular characteristics are more reliable indicators of biological behavior than is mitotic index in most ophthalmic melanocytic tumors. Melanocytic neoplasias of the eyelid are predominantly benign in canines and equines, though in felines, there is the potential for metastasis, especially if the conjunctiva is involved...
December 2015: Topics in Companion Animal Medicine
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