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Tailor PD, Kopinski PK, D’Souza HS, Leske DA, Olsen TW, Shields CL, Shields JA, Dalvin LA. Predicting Choroidal Nevus Transformation to Melanoma Using Machine Learning. OPHTHALMOLOGY SCIENCE 2025; 5:100584. [PMID: 39318711 PMCID: PMC11421339 DOI: 10.1016/j.xops.2024.100584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 06/07/2024] [Accepted: 07/16/2024] [Indexed: 09/26/2024]
Abstract
Purpose To develop and validate machine learning (ML) models to predict choroidal nevus transformation to melanoma based on multimodal imaging at initial presentation. Design Retrospective multicenter study. Participants Patients diagnosed with choroidal nevus on the Ocular Oncology Service at Wills Eye Hospital (2007-2017) or Mayo Clinic Rochester (2015-2023). Methods Multimodal imaging was obtained, including fundus photography, fundus autofluorescence, spectral domain OCT, and B-scan ultrasonography. Machine learning models were created (XGBoost, LGBM, Random Forest, Extra Tree) and optimized for area under receiver operating characteristic curve (AUROC). The Wills Eye Hospital cohort was used for training and testing (80% training-20% testing) with fivefold cross validation. The Mayo Clinic cohort provided external validation. Model performance was characterized by AUROC and area under precision-recall curve (AUPRC). Models were interrogated using SHapley Additive exPlanations (SHAP) to identify the features most predictive of conversion from nevus to melanoma. Differences in AUROC and AUPRC between models were tested using 10 000 bootstrap samples with replacement and results. Main Outcome Measures Area under receiver operating curve and AUPRC for each ML model. Results There were 2870 nevi included in the study, with conversion to melanoma confirmed in 128 cases. Simple AI Nevus Transformation System (SAINTS; XGBoost) was the top-performing model in the test cohort [pooled AUROC 0.864 (95% confidence interval (CI): 0.864-0.865), pooled AUPRC 0.244 (95% CI: 0.243-0.246)] and in the external validation cohort [pooled AUROC 0.931 (95% CI: 0.930-0.931), pooled AUPRC 0.533 (95% CI: 0.531-0.535)]. Other models also had good discriminative performance: LGBM (test set pooled AUROC 0.831, validation set pooled AUROC 0.815), Random Forest (test set pooled AUROC 0.812, validation set pooled AUROC 0.866), and Extra Tree (test set pooled AUROC 0.826, validation set pooled AUROC 0.915). A model including only nevi with at least 5 years of follow-up demonstrated the best performance in AUPRC (test: pooled 0.592 (95% CI: 0.590-0.594); validation: pooled 0.656 [95% CI: 0.655-0.657]). The top 5 features in SAINTS by SHAP values were: tumor thickness, largest tumor basal diameter, tumor shape, distance to optic nerve, and subretinal fluid extent. Conclusions We demonstrate accuracy and generalizability of a ML model for predicting choroidal nevus transformation to melanoma based on multimodal imaging. Financial Disclosures Proprietary or commercial disclosure may be found in the Footnotes and Disclosures at the end of this article.
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Affiliation(s)
| | - Piotr K. Kopinski
- Department of Ophthalmology, Mayo Clinic, Rochester, Minnesota, 55905
| | - Haley S. D’Souza
- Department of Ophthalmology, Mayo Clinic, Rochester, Minnesota, 55905
| | - David A. Leske
- Department of Ophthalmology, Mayo Clinic, Rochester, Minnesota, 55905
| | - Timothy W. Olsen
- Department of Ophthalmology, Mayo Clinic, Rochester, Minnesota, 55905
| | - Carol L. Shields
- Ocular Oncology Service, Wills Eye Hospital, Thomas Jefferson University, Philadelphia, Pennsylvania, 19107
| | - Jerry A. Shields
- Ocular Oncology Service, Wills Eye Hospital, Thomas Jefferson University, Philadelphia, Pennsylvania, 19107
| | - Lauren A. Dalvin
- Department of Ophthalmology, Mayo Clinic, Rochester, Minnesota, 55905
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Dadzie AK, Iddir SP, Abtahi M, Ebrahimi B, Le D, Ganesh S, Son T, Heiferman MJ, Yao X. Colour fusion effect on deep learning classification of uveal melanoma. Eye (Lond) 2024; 38:2781-2787. [PMID: 38773261 PMCID: PMC11427558 DOI: 10.1038/s41433-024-03148-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 04/23/2024] [Accepted: 05/10/2024] [Indexed: 05/23/2024] Open
Abstract
BACKGROUND Reliable differentiation of uveal melanoma and choroidal nevi is crucial to guide appropriate treatment, preventing unnecessary procedures for benign lesions and ensuring timely treatment for potentially malignant cases. The purpose of this study is to validate deep learning classification of uveal melanoma and choroidal nevi, and to evaluate the effect of colour fusion options on the classification performance. METHODS A total of 798 ultra-widefield retinal images of 438 patients were included in this retrospective study, comprising 157 patients diagnosed with UM and 281 patients diagnosed with choroidal naevus. Colour fusion options, including early fusion, intermediate fusion and late fusion, were tested for deep learning image classification with a convolutional neural network (CNN). F1-score, accuracy and the area under the curve (AUC) of a receiver operating characteristic (ROC) were used to evaluate the classification performance. RESULTS Colour fusion options were observed to affect the deep learning performance significantly. For single-colour learning, the red colour image was observed to have superior performance compared to green and blue channels. For multi-colour learning, the intermediate fusion is better than early and late fusion options. CONCLUSION Deep learning is a promising approach for automated classification of uveal melanoma and choroidal nevi. Colour fusion options can significantly affect the classification performance.
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Affiliation(s)
- Albert K Dadzie
- Department of Biomedical Engineering, University of Illinois Chicago, Chicago, IL, 60607, USA
| | - Sabrina P Iddir
- Department of Ophthalmology and Visual Sciences, University of Illinois Chicago, Chicago, IL, 60612, USA
| | - Mansour Abtahi
- Department of Biomedical Engineering, University of Illinois Chicago, Chicago, IL, 60607, USA
| | - Behrouz Ebrahimi
- Department of Biomedical Engineering, University of Illinois Chicago, Chicago, IL, 60607, USA
| | - David Le
- Department of Biomedical Engineering, University of Illinois Chicago, Chicago, IL, 60607, USA
| | - Sanjay Ganesh
- Department of Ophthalmology and Visual Sciences, University of Illinois Chicago, Chicago, IL, 60612, USA
| | - Taeyoon Son
- Department of Biomedical Engineering, University of Illinois Chicago, Chicago, IL, 60607, USA
| | - Michael J Heiferman
- Department of Ophthalmology and Visual Sciences, University of Illinois Chicago, Chicago, IL, 60612, USA.
| | - Xincheng Yao
- Department of Biomedical Engineering, University of Illinois Chicago, Chicago, IL, 60607, USA.
- Department of Ophthalmology and Visual Sciences, University of Illinois Chicago, Chicago, IL, 60612, USA.
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Alsoudi AF, Skrehot HC, Chévez-Barrios P, Divatia M, De La Garza M, Bretana ME, Schefler AC. COMPREHENSIVE MOLECULAR PROFILING OF UVEAL MELANOMA EVALUATED WITH GENE EXPRESSION PROFILING, PREFERENTIALLY EXPRESSED ANTIGEN IN MELANOMA EXPRESSION, AND NEXT-GENERATION SEQUENCING. Retina 2024; 44:1580-1589. [PMID: 39167579 DOI: 10.1097/iae.0000000000004153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
PURPOSE To determine the association between gene-expression profiling (GEP), next-generation sequencing (NGS), preferentially expressed antigen in melanoma (PRAME) features, and metastatic risk in patients with uveal melanoma (UM). METHODS A retrospective analysis of patients with UM treated by brachytherapy or enucleation by a single ocular oncologist was conducted from November 2020 and July 2022. Clinicopathologic features, patient outcomes, GEP classification, NGS, and PRAME results were recorded. RESULTS Comprehensive GEP, PRAME, and NGS testing was performed on 135 UMs. The presence of eukaryotic translation initiation factor 1A, X-chromosomal and splicing factor 3B subunit 1 mutations was significantly associated with GEP class 1A and GEP class 1B, respectively. The presence of BRCA- associated protein-1 mutation was significantly associated with GEP class 2. The average largest basal diameter for tumors with eukaryotic translation initiation factor 1A, X-chromosomal mutations was significantly smaller than those with splicing factor 3B subunit 1 mutations and BRCA1-associated protein-1 mutations. Class 2 tumors metastasized sooner than GEP class 1 tumors. Tumors with splicing factor 3B subunit 1 and/or BRCA1-associated protein-1 mutations metastasized sooner compared with tumors that had either no driver mutation or no mutations at all. Tumors with splicing factor 3B subunit 1 did not have a significantly different time to metastasis compared with tumors with BRCA1-associated protein-1 (P value = 0.97). Forty tumors (30%) were PRAME positive, and the remaining 95 tumors (70%) were PRAME negative. Tumors with PRAME-positive status did not have a significantly different time to metastasis compared with tumors without PRAME-positive status (P value = 0.11). CONCLUSION GEP, NGS, and PRAME expression analysis help determine different levels of metastatic risk in UM. Although other prognostic tests exist, the following study reports on the use of NGS for metastatic prognostication in UM. However, limitations of NGS exist, especially with small lesions that are technically difficult to biopsy.
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Affiliation(s)
- Amer F Alsoudi
- Department of Ophthalmology, Baylor College of Medicine, Houston, Texas
| | - Henry C Skrehot
- School of Medicine, Baylor College of Medicine, Houston, Texas
| | - Patricia Chévez-Barrios
- Department of Ophthalmology, Baylor College of Medicine, Houston, Texas
- Department of Pathology and Genomic Medicine, Weill Cornell Medicine, Houston Methodist Hospital, Houston, Texas
- Blanton Eye Institute, Weill Cornell Medicine, Houston Methodist Hospital, Houston, Texas; and
| | - Mukul Divatia
- Department of Pathology and Genomic Medicine, Weill Cornell Medicine, Houston Methodist Hospital, Houston, Texas
| | - Maria De La Garza
- Department of Pathology and Genomic Medicine, Weill Cornell Medicine, Houston Methodist Hospital, Houston, Texas
| | | | - Amy C Schefler
- Blanton Eye Institute, Weill Cornell Medicine, Houston Methodist Hospital, Houston, Texas; and
- Retina Consultants of Texas, Houston, Texas
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Kulbay M, Marcotte E, Remtulla R, Lau THA, Paez-Escamilla M, Wu KY, Burnier MN. Uveal Melanoma: Comprehensive Review of Its Pathophysiology, Diagnosis, Treatment, and Future Perspectives. Biomedicines 2024; 12:1758. [PMID: 39200222 PMCID: PMC11352094 DOI: 10.3390/biomedicines12081758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2024] [Revised: 07/22/2024] [Accepted: 07/24/2024] [Indexed: 09/02/2024] Open
Abstract
Uveal melanoma (UM) is the most common intraocular malignancy in adults. Recent advances highlight the role of tumor-derived extracellular vesicles (TEV) and circulating hybrid cells (CHC) in UM tumorigenesis. Bridged with liquid biopsies, a novel technology that has shown incredible performance in detecting cancer cells or products derived from tumors in bodily fluids, it can significantly impact disease management and outcome. The aim of this comprehensive literature review is to provide a summary of current knowledge and ongoing advances in posterior UM pathophysiology, diagnosis, and treatment. The first section of the manuscript discusses the complex and intricate role of TEVs and CHCs. The second part of this review delves into the epidemiology, etiology and risk factors, clinical presentation, and prognosis of UM. Third, current diagnostic methods, ensued by novel diagnostic tools for the early detection of UM, such as liquid biopsies and artificial intelligence-based technologies, are of paramount importance in this review. The fundamental principles, limits, and challenges associated with these diagnostic tools, as well as their potential as a tracker for disease progression, are discussed. Finally, a summary of current treatment modalities is provided, followed by an overview of ongoing preclinical and clinical research studies to provide further insights on potential biomolecular pathway alterations and therapeutic targets for the management of UM. This review is thus an important resource for all healthcare professionals, clinicians, and researchers working in the field of ocular oncology.
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Affiliation(s)
- Merve Kulbay
- Department of Ophthalmology & Visual Sciences, McGill University, Montreal, QC H4A 3S5, Canada; (M.K.); (R.R.); (T.H.A.L.); (M.P.-E.)
| | - Emily Marcotte
- McGill University Ocular Pathology and Translational Research Laboratory, McGill University, Montreal, QC H4A 3J1, Canada;
- Cancer Research Program, Research Institute of the McGill University Health Centre, Montreal, QC H4A 3J1, Canada
| | - Raheem Remtulla
- Department of Ophthalmology & Visual Sciences, McGill University, Montreal, QC H4A 3S5, Canada; (M.K.); (R.R.); (T.H.A.L.); (M.P.-E.)
| | - Tsz Hin Alexander Lau
- Department of Ophthalmology & Visual Sciences, McGill University, Montreal, QC H4A 3S5, Canada; (M.K.); (R.R.); (T.H.A.L.); (M.P.-E.)
| | - Manuel Paez-Escamilla
- Department of Ophthalmology & Visual Sciences, McGill University, Montreal, QC H4A 3S5, Canada; (M.K.); (R.R.); (T.H.A.L.); (M.P.-E.)
| | - Kevin Y. Wu
- Department of Surgery, Division of Ophthalmology, University of Sherbrooke, Sherbrooke, QC J1G 2E8, Canada;
| | - Miguel N. Burnier
- Department of Ophthalmology & Visual Sciences, McGill University, Montreal, QC H4A 3S5, Canada; (M.K.); (R.R.); (T.H.A.L.); (M.P.-E.)
- McGill University Ocular Pathology and Translational Research Laboratory, McGill University, Montreal, QC H4A 3J1, Canada;
- Cancer Research Program, Research Institute of the McGill University Health Centre, Montreal, QC H4A 3J1, Canada
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Verbeek S, Dalvin LA. Advances in multimodal imaging for diagnosis of pigmented ocular fundus lesions. CANADIAN JOURNAL OF OPHTHALMOLOGY 2024; 59:218-233. [PMID: 37480939 PMCID: PMC10796850 DOI: 10.1016/j.jcjo.2023.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 05/25/2023] [Accepted: 07/06/2023] [Indexed: 07/24/2023]
Abstract
Pigmented ocular fundus lesions can range from benign to malignant. While observation is reasonable for asymptomatic benign lesions, early recognition of tumours that are vision or life threatening is critical for long-term prognosis. With recent advances and increased accessibility of multimodal imaging, it is important that providers understand how to best use these tools to detect tumours that require early referral to subspecialty centres. This review aims to provide an overview of pigmented ocular fundus lesions and their defining characteristics using multimodal imaging. We cover the spectrum of pigmented ocular fundus lesions, including freckle and focal aggregates of normal or near-normal uveal melanocytes, retinal pigment epithelium (RPE) hyperplasia, congenital hypertrophy of the RPE, RPE hamartoma associated with familial adenomatous polyposis, congenital simple hamartoma of the RPE, combined hamartoma of the retina and RPE (congenital hypertrophy of the RPE), choroidal nevus, melanocytosis, melanocytoma, melanoma, adenoma, and RPE adenocarcinoma. We describe key diagnostic features using multimodal imaging modalities of ultra-widefield fundus photography, fundus autofluorescence, optical coherence tomography (OCT), enhanced-depth imaging OCT, ultrasonography, fluorescein angiography, indocyanine green angiography, and OCT angiography (OCTA), with particular attention to diagnostic features that could be missed on fundus examination alone. Finally, we review what is on the horizon, including applications of artificial intelligence. Through skilled application of current and emerging imaging technologies, earlier detection of sight- and life-threatening melanocytic ocular fundus tumours can lead to improved patient prognosis.
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Affiliation(s)
- Sara Verbeek
- Department of Ophthalmology, Mayo Clinic, Rochester, MN
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Qureshi MB, Lentz PC, Xu TT, White LJ, Olsen TW, Pulido JS, Dalvin LA. Choroidal Nevus Features Associated with Subspecialty Referral. Ophthalmol Retina 2023; 7:1097-1108. [PMID: 37517800 PMCID: PMC10823039 DOI: 10.1016/j.oret.2023.07.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 07/14/2023] [Accepted: 07/20/2023] [Indexed: 08/01/2023]
Abstract
OBJECTIVE To identify choroidal nevus features associated with referral to a retina or ocular oncology subspecialist. DESIGN Population-based retrospective cohort study. SUBJECTS Patients diagnosed with choroidal nevus. METHODS Population-based retrospective cohort study of residents of Olmsted County, Minnesota, with an incident diagnosis of choroidal nevus from January 1, 2006, to December 31, 2015 using the Rochester Epidemiology Project, a medical record linkage system. Tumor features and patient demographics associated with referral to a retina or ocular oncology subspecialist were assessed. Wilcoxon rank sum test, chi-square test, and Fisher exact test were used for statistical analysis. MAIN OUTCOME MEASURES Tumor features and patient demographics associated with referral to subspecialty care. RESULTS There were 826 incident diagnoses of choroidal nevus, of which 88 cases (11%) were referred, with highest level of referral being retina in 29 cases (33%) and ocular oncology in 59 cases (67%). None of the analyzed demographic features were associated with choroidal nevus referral to subspecialty care. Tumor features associated with referral (vs. not referred) included greater mean basal diameter (4.6 mm vs. 2.4 mm, P < 0.001), greater mean tumor thickness (0.7 mm vs. 0.1 mm, P < 0.001), greater distance to optic disc (6.9 mm vs. 3.4 mm, P = 0.02), halo around nevus (5.7% vs. 0.4%, P < 0.001), and drusen on OCT (51% vs. 25%, P = 0.002). Presence of orange pigment (8% vs. 0%, P = 0.14), subretinal fluid (9% vs. 2.5%, P = 0.09), and low internal reflectivity on A-scan (7.7% vs. 0%, P = 1.00) were not found more frequently in the subspecialty referral group. CONCLUSIONS Greater basal diameter and mean tumor thickness of choroidal nevus were associated with referral to retina or ocular oncology. However, several features associated with increased risk of malignant transformation were not associated with subspecialty referral. These findings highlight the importance of educating eye care providers about high-risk tumor features associated with choroidal nevus transformation to melanoma. In the primary eye care setting where not all multimodal imaging may be available, we encourage color photography and OCT with referral for any features of basal diameter > 5 mm, presence of subretinal fluid, or thickness too large for capture by enhanced-depth imaging OCT. FINANCIAL DISCLOSURE(S) The authors have no proprietary or commercial interest in any materials discussed in this article.
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Affiliation(s)
| | - Paul C Lentz
- Mayo Clinic Alix School of Medicine, Scottsdale, Arizona
| | - Timothy T Xu
- Department of Ophthalmology, Mayo Clinic, Rochester, Minnesota
| | - Launia J White
- Department of Health Sciences Research, Mayo Clinic, Jacksonville, Florida
| | - Timothy W Olsen
- Department of Ophthalmology, Mayo Clinic, Rochester, Minnesota
| | - Jose S Pulido
- Department of Ophthalmology, Mayo Clinic, Rochester, Minnesota; Wills Eye Hospital, Department of Translational Ophthalmology, Philadelphia, Pennsylvania
| | - Lauren A Dalvin
- Department of Ophthalmology, Mayo Clinic, Rochester, Minnesota.
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Velez G, Wolf J, Dufour A, Mruthyunjaya P, Mahajan VB. Cross-Platform Identification and Validation of Uveal Melanoma Vitreous Protein Biomarkers. Invest Ophthalmol Vis Sci 2023; 64:14. [PMID: 37955612 PMCID: PMC10653261 DOI: 10.1167/iovs.64.14.14] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 10/20/2023] [Indexed: 11/14/2023] Open
Abstract
Purpose The purpose of this study was to profile protein expression liquid vitreous biopsies from patients with uveal melanoma (UM) using mass spectrometry to identify prognostic biomarkers, signaling pathways, and therapeutic targets. Methods Vitreous biopsies were collected from two cohorts in a pilot study: comparative control eyes with epiretinal membranes (ERM; n = 3) and test eyes with UM (n = 8). Samples were analyzed using liquid chromatography-tandem mass spectrometry (LC-MS/MS). Identified proteins were compared to data from a targeted multiplex ELISA proteomics platform. Results A total of 69 significantly elevated proteins were detected in the UM vitreous, including LYVE-1. LC-MS/MS identified 62 significantly upregulated proteins in UM vitreous that were not previously identified by ELISA. Analysis of differential protein expression by tumor molecular classification (gene expression profiling [GEP] and preferentially expressed antigen in melanoma [PRAME]) further identified proteins that correlated with these classifications. Patients with high-risk GEP tumors displayed elevated vitreous expression of HGFR (fold-change [FC] = 2.66E + 03, P value = 0.003) and PYGL (FC = 1.02E + 04, P = 1.72E-08). Patients with PRAME positive tumors displayed elevated vitreous expression of ENPP-2 (FC = 3.21, P = 0.04), NEO1 (FC = 2.65E + 03, P = 0.002), and LRP1 (FC = 5.59E + 02, P value = 0.01). IGF regulatory effectors were highly represented (P value = 1.74E-16). Cross-platform analysis validated seven proteins identified by ELISA and LC-MS/MS. Conclusions Proteomic analysis of liquid biopsies may provide prognostic information supporting gene expression of tumor biopsies. The use of multiple protein detection platforms in the same patient samples increases the sensitivity of candidate biomarker detection and allows for precise characterization of the vitreous proteome.
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Affiliation(s)
- Gabriel Velez
- Molecular Surgery Laboratory, Stanford University, Palo Alto, California, United States
- Department of Ophthalmology, Byers Eye Institute, Stanford University, Palo Alto, California, United States
| | - Julian Wolf
- Molecular Surgery Laboratory, Stanford University, Palo Alto, California, United States
- Department of Ophthalmology, Byers Eye Institute, Stanford University, Palo Alto, California, United States
| | - Antoine Dufour
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Prithvi Mruthyunjaya
- Department of Ophthalmology, Byers Eye Institute, Stanford University, Palo Alto, California, United States
| | - Vinit B. Mahajan
- Molecular Surgery Laboratory, Stanford University, Palo Alto, California, United States
- Department of Ophthalmology, Byers Eye Institute, Stanford University, Palo Alto, California, United States
- Veterans Affairs Palo Alto Health Care System, Palo Alto, California, United States
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Jouhi S, Al-Jamal RT, Täll M, Eskelin S, Kivelä TT. Presumed incipient choroidal melanoma: proposed diagnostic criteria and management. Br J Ophthalmol 2023; 107:412-417. [PMID: 34666992 DOI: 10.1136/bjophthalmol-2020-318658] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 09/24/2021] [Indexed: 11/03/2022]
Abstract
AIMS To propose diagnostic criteria for a presumed incipient choroidal melanoma based on tumour growth rate and tumour doubling time (TDT) and to describe management of such tumours with transpupillary thermotherapy (TTT). METHODS Retrospective interventional case series of nine consecutive presumed incipient uveal melanomas diagnosed and treated with TTT in 2010-2017. Growth rate in mm/year and per cent/year in largest basal diameter (LBD) and TDT were compared with published data for uveal melanomas and growing naevi that did not transform to melanoma under long-term follow-up. RESULTS The median LBD and thickness were 1.6 mm (range 0.9-2.3) and 0.20 mm (range 0.15-0.29), respectively. The median age was 57 years (range 47-78). Seven tumours were classified as de novo melanomas and two as transformed naevi. The median time from first observation to diagnosis was 3.3 years (range 2.2-7.3), LBD growth rate 0.25 mm/year (range 0.11-0.72) and 34 per cent/year (range 10-1437), and TDT 609 days (range 97-1612). The estimates matched those reported for uveal melanoma (median TDT 521 days, 90th percentile 2192) and exceeded those for growing naevi (median growth rate 0.04 mm/year, 90th percentile 0.12; 1.1 per cent/year, 90th percentile 2.6). The predicted median age at de novo appearance was 51 years (range 32-63). No tumour grew after TTT during a median follow-up of 2.1 years (range 0.6-8.7). CONCLUSIONS In this series, relative growth rate and TDT best qualified as diagnostic criteria for an incipient choroidal melanoma. Too small for brachytherapy, they could be managed with TTT.
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Affiliation(s)
- Susanna Jouhi
- Ocular Oncology Service, Department of Ophthalmology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Ranaa T Al-Jamal
- Ocular Oncology Service, Department of Ophthalmology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Martin Täll
- Ocular Oncology Service, Department of Ophthalmology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Sebastian Eskelin
- Ocular Oncology Service, Department of Ophthalmology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Tero T Kivelä
- Ocular Oncology Service, Department of Ophthalmology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
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Soliman N, Mamdouh D, Elkordi A. Choroidal Melanoma: A Mini Review. MEDICINES (BASEL, SWITZERLAND) 2023; 10:medicines10010011. [PMID: 36662495 PMCID: PMC9863301 DOI: 10.3390/medicines10010011] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/18/2022] [Accepted: 12/27/2022] [Indexed: 01/09/2023]
Abstract
Choroidal melanoma is a rare malignant tumour, yet it is the most common primary intra-ocular neoplasm and second on the list of top ten most malignant melanoma sites in the body. Clinical presentation can be non-specific and includes photopsia, floaters, progressive visual field loss, and blurry vision. The tumour is quite often diagnosed clinically during fundus examination; however, the most valued diagnostic tests are A- and B-scan ultrasonography (US). Several factors affect prognosis, including the patient's age, tumour size, histological features, and presence of metastases. Still, with primary treatment and tight surveillance, around 50% of choroidal melanoma patients metastasise.
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Affiliation(s)
- Noha Soliman
- UCL Institute of Ophthalmology, London EC1V 9EL, UK
- National Institute for Health Research Biomedical Research Centre for Ophthalmology, Moorfields Eye Hospital NHS Foundation Trust, UCL Institute of Ophthalmology, London EC1V 2PD, UK
- Royal College of Surgeons in Ireland, Medical University of Bahrain, Muharraq P.O. Box 15503, Bahrain
- Correspondence:
| | - Diaa Mamdouh
- Faculty of Medicine, Kuwait University, Kuwait City P.O. Box 24923, Kuwait
- Sheikh Jaber Al Ahmad Al Jaber Al Sabah Hospital, Kuwait City, Kuwait
| | - Aisha Elkordi
- Royal College of Surgeons in Ireland, Medical University of Bahrain, Muharraq P.O. Box 15503, Bahrain
- King Hamed University Hospital, Muharraq P.O Box 24343, Bahrain
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Singh AD, Raval V, Wrenn J, Zabor EC. Small Choroidal Melanoma: Outcomes After Surveillance Versus Immediate Treatment. Am J Ophthalmol 2022; 241:47-56. [PMID: 35358487 DOI: 10.1016/j.ajo.2022.03.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 03/09/2022] [Accepted: 03/18/2022] [Indexed: 11/01/2022]
Abstract
PURPOSE To quantify potential loss (loss of vision) and gain (freedom from metastasis) in patients with small choroidal melanoma treated after a period of surveillance to document growth. METHODS A total of 167 patients with small choroidal melanoma (size: 5.0-16.0 mm in largest basal diameter and 1.0-2.5 mm in height) were identified: 42 treated after surveillance (documented growth) and 125 treated immediately. A prediction model was applied to each patient in the immediate treatment group to obtain the predicted risk of melanoma (high risk vs low risk). Potential loss (loss of vision) and gain (freedom from metastasis) were compared between the low-risk immediate treatment group and those treated after surveillance. RESULTS By using the optimal cut point (0.60; 95% confidence interval: 0.37-0.61) of predicted risk for small choroidal melanoma (sensitivity: 0.74, specificity: 0.95), we identified 94 (75%) patients as high risk (score: ≥0.6) and the remaining 31 (25%) as having low-risk melanoma (score: <0.6). Over a median follow-up of 34.6 months, 5 developed metastasis (high risk = 4, low risk = 1) compared with 1 patient in the surveillance group. Initial visual acuity and loss of <15-letter visual acuity were not significantly different at 36 months between the low-risk patients immediately treated and those treated after surveillance (81% vs 83%), respectively. CONCLUSIONS Low-risk choroidal melanoma identified by the prediction model can be labeled as an indeterminate melanocytic tumor. Such patients can be managed by surveillance to document growth before receiving vision-threatening treatment without increased risk of metastatic death. NOTE: Publication of this article is sponsored by the American Ophthalmological Society.
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Affiliation(s)
- Arun D Singh
- From the Ophthalmic Oncology, Cole Eye Institute, Cleveland Clinic (A.D.S., V.R., J.W.), and.
| | - Vishal Raval
- From the Ophthalmic Oncology, Cole Eye Institute, Cleveland Clinic (A.D.S., V.R., J.W.), and
| | - Jacquelyn Wrenn
- From the Ophthalmic Oncology, Cole Eye Institute, Cleveland Clinic (A.D.S., V.R., J.W.), and
| | - Emily C Zabor
- Quantitative Health Sciences, Lerner Research Institute, Cleveland Clinic (E.C.Z.), Cleveland, Ohio, USA
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Zabor EC, Raval V, Luo S, Pelayes DE, Singh AD. A Prediction Model to Discriminate Small Choroidal Melanoma from Choroidal Nevus. Ocul Oncol Pathol 2022; 8:71-78. [PMID: 35356604 PMCID: PMC8914269 DOI: 10.1159/000521541] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Accepted: 12/16/2021] [Indexed: 02/03/2023] Open
Abstract
Objective This study aimed to develop a validated machine learning model to diagnose small choroidal melanoma. Design This is a cohort study. Subjects Participants and/or Controls The training data included 123 patients diagnosed as small choroidal melanocytic tumor (5.0-16.0 mm in largest basal diameter and 1.0 mm-2.5 mm in height; Collaborative Ocular Melanoma Study criteria). Those diagnosed as melanoma (n = 61) had either documented growth or pathologic confirmation. Sixty-two patients with stable lesions classified as choroidal nevus were used as negative controls. The external validation dataset included 240 patients managed at a different tertiary clinic, also with small choroidal melanocytic tumor, observed for malignant growth. Methods In the training data, lasso logistic regression was used to select variables for inclusion in the final model for the association with melanoma versus choroidal nevus. Internal and external validation was performed to assess model performance. Main Outcome Measures The main outcome measure is the predicted probability of small choroidal melanoma. Results Distance to optic disc ≥3 mm and drusen were associated with decreased odds of melanoma, whereas male versus female sex, increased height, subretinal fluid, and orange pigment were associated with increased odds of choroidal melanoma. The area under the receiver operating characteristic "discrimination value" for this model was 0.880. The top four variables that were most frequently selected for inclusion in the model on internal validation, implying their importance as predictors of melanoma, were subretinal fluid, height, distance to optic disc, and orange pigment. When tested against the validation data, the prediction model could distinguish between choroidal nevus and melanoma with a high discrimination of 0.861. The final prediction model was converted into an online calculator to generate predicted probability of melanoma. Conclusions To minimize diagnostic uncertainty, a machine learning-based diagnostic prediction calculator can be readily applied for decision-making and counseling patients with small choroidal melanoma.
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Affiliation(s)
- Emily C. Zabor
- Taussig Cancer Institute, Department of Quantitative Health Sciences, Cleveland Clinic, Cleveland, Ohio, USA
| | - Vishal Raval
- Cole Eye Institute, Ophthalmic Oncology, Cleveland Clinic, Cleveland, Ohio, USA
| | - Shiming Luo
- Cole Eye Institute, Ophthalmic Oncology, Cleveland Clinic, Cleveland, Ohio, USA
| | - David E. Pelayes
- Department of Ophthalmology, Buenos Aires University and Maimonides University, Buenos Aires, Argentina
| | - Arun D. Singh
- Cole Eye Institute, Ophthalmic Oncology, Cleveland Clinic, Cleveland, Ohio, USA,*Arun D. Singh,
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Raval V, Luo S, Zabor EC, Singh AD. Small Choroidal Melanoma: Correlation of Growth Rate with Pathology. Ocul Oncol Pathol 2021; 7:401-410. [PMID: 35087817 PMCID: PMC8740066 DOI: 10.1159/000517203] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 05/12/2021] [Indexed: 01/13/2023] Open
Abstract
PURPOSE The aim of the study was to evaluate equivalence of growth rate and pathologic confirmation in small choroidal melanoma (SCM). DESIGN This study is a case series. SUBJECTS PARTICIPANTS AND CONTROLS A total of 61 patients with a choroidal melanocytic tumor of size 5.0-16.0 mm in the largest basal diameter and 1.0-2.5 mm in thickness were classified into the pathology-confirmed group (n = 19), growth-confirmed group (n = 30), and with combined observations (n = 12). METHODS Distribution of clinical variables (age, gender, laterality, tumor dimensions, tumor location, and presence of orange pigment, subretinal fluid, drusen, and retinal pigment epithelial [RPE] atrophy) between the groups was analyzed. Patient and disease characteristics were summarized as the median and interquartile range for continuous variables and the frequency and percentage for categorical variables. Comparisons were made using the Wilcoxon rank sum test for continuous variables and either Fisher's exact test or the χ2 test for categorical variables with a p value threshold of 0.05 for statistical significance. Growth rate (change in basal dimension/12 months) diagnostic of SCM was quantified. MAIN OUTCOME MEASURES The primary aim of this study was to test the hypothesis that "growth" was diagnostic of SCM with the secondary aim of quantifying the malignant "growth rate" (growth rate of SCM). RESULTS The clinical characteristics among all 3 groups were similar except more patients with symptoms (68 vs. 20 vs. 42%, p = 0.004) and juxtapapillary location (p = 0.03) were in the pathology group than in the growth-confirmed group. Those in the combined and growth-confirmed groups had more patients with drusen (11 vs. 60 vs. 50%, p = 0.003) and RPE atrophy (11 vs. 23 vs. 67%, p = 0.003), respectively, than in the pathology group. The median time to detect growth was 9 months (range 3-26 months). The mean growth rate in basal dimension was 1.8 mm/12 months (range, 0.0-7.4 mm; [95% CI: 1.32-2.28]). CONCLUSIONS AND RELEVANCE Choroidal melanocytic lesions exhibiting a defined growth rate can be clinically diagnosed as SCM without a need for biopsy.
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Affiliation(s)
- Vishal Raval
- Ophthalmic Oncology, Cole Eye Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Shiming Luo
- Ophthalmic Oncology, Cole Eye Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Emily C. Zabor
- Quantitative Health Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Arun D. Singh
- Ophthalmic Oncology, Cole Eye Institute, Cleveland Clinic, Cleveland, Ohio, USA
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Luo S, Raval V, Zabor EC, Singh AD. Small Choroidal Melanoma: Correlation between Clinical Characteristics and Metastatic Potential. Ocul Oncol Pathol 2021; 7:437-446. [PMID: 35087820 PMCID: PMC8740206 DOI: 10.1159/000519672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 09/10/2021] [Indexed: 11/19/2022] Open
Abstract
IMPORTANCE Diagnosis of small choroidal melanoma is based upon clinical features and presence of factors predictive of local malignant growth. Prognostic biopsy quantifies risk of metastasis. OBJECTIVE The aim of this study is to explore relationship between clinical characteristics and metastatic potential of a small choroidal melanoma. DESIGN Retrospective review of 53 patients with small choroidal melanoma treated in a tertiary oncology clinic. Patients were derived from 3 cohorts, with pathologic confirmation, with growth confirmation, and those treated only on clinical basis. Based upon prognostic biopsy outcomes, each case was classified into low or high metastatic potential groups. Distribution of clinical characteristics such as age, laterality, symptoms, tumor dimensions, tumor distance from optic nerve and fovea, presence of surface orange pigment, drusen, retinal pigment epithelial atrophy, and subretinal fluid was analyzed between metastatic groups. MAIN OUTCOME MEASURES Distribution of clinical characteristics between low or high metastatic potential groups was analyzed. RESULTS A total of 53 patients [mean age, 61 years (range, 27-81 years); 32 (60%) men and 21 (40%) women] were classified into pathology confirmed group (n = 13), growth confirmed group (n = 26), and with clinical group (n = 14). Prognostic biopsy in the growth, pathology, and clinical groups revealed low metastatic potential in 23, 10, and 11 patients, respectively, and high metastatic potential in 3 patients in each group. Distribution of clinical characteristics between low or high metastatic potential groups was not statistically significantly different. CONCLUSION Clinical characteristics do not identify metastatic potential of a small choroidal melanoma.
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Affiliation(s)
- Shiming Luo
- Department of Quantitative Health Sciences & Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Vishal Raval
- Department of Quantitative Health Sciences & Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Emily C Zabor
- Ophthalmic Oncology, Cole Eye Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Arun D Singh
- Department of Quantitative Health Sciences & Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio, USA
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14
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de Albuquerque ML, Correa Z, Messias A, Jorge R. Decreased Retinal Sensitivity Overlying Choroidal Nevi. Ocul Oncol Pathol 2021; 7:287-293. [PMID: 34604202 DOI: 10.1159/000515561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 02/28/2021] [Indexed: 11/19/2022] Open
Abstract
Purpose To report retinal function findings on the choroidal nevus. Methods Prospective descriptive case series of 7 patients (n = 7 eyes) presenting a melanocytic choroidal lesion consistent with choroidal nevus and no other ocular disease. Baseline evaluation included measurement of best-corrected visual acuity (BCVA), color and near-infrared fundus pictures, and spectral-domain OCT (Heidelberg Engineering). Retinal function was tested with microperimetry (MAIA; CenterVUE, Padova) using a standard grid (µP1) and a linear grid (µP2) that distribute test points on retinal areas that overlaid the choroidal lesion as well as lesion-free areas equidistantly to the fovea in 3 parallel lines. mfERG was performed following the International Society for Clinical Electrophysiology of Vision (ISCEV) recommendation using a 61-hexyagon protocol. Results BCVA was 20/25 (0.1 logMAR) or better in all 7 eyes. Microperimetry showed central stable fixation on all eyes, with mean ± SE sensitivity threshold significantly decreased on retinal areas overlaying the lesions (µP1): 21.8 ± 0.6 dB versus 25.2 ± 0.9 dB on nonaffected retinal areas (p < 0.001). Sensitivity was also decreased on µP2: 23.7 ± 0.2 dB for areas overlying the nevi and 25.7 ± 0.3 dB for the nonaffected retina (p < 0.001). mfERG responses showed no focal amplitude or implicit-time changes on the retina in the topographical region corresponding to the nevus for all patients. Conclusion Our results indicate that choroidal nevi may cause significant retinal sensitivity impairment, as shown by microperimetry, but preserved mfERG response indicates that the retinal function may be only partially impaired.
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Affiliation(s)
- Marina L de Albuquerque
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Zelia Correa
- Bascom Palmer Eye Institute, Sylvester Comprehensive Cancer Center, University of Miami, Miami, Florida, USA
| | - André Messias
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Rodrigo Jorge
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
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Stålhammar G. A Word of Caution regarding Risk Factors for Malignant Transformation of Choroidal Nevi. Ocul Oncol Pathol 2021; 7:376-380. [PMID: 34722495 PMCID: PMC8531816 DOI: 10.1159/000518868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 08/02/2021] [Indexed: 11/19/2022] Open
Affiliation(s)
- Gustav Stålhammar
- St. Erik Eye Hospital, Stockholm, Sweden
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
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16
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Al Harby L, Sagoo MS, O'Day R, Hay G, Arora AK, Keane PA, Cohen VML, Damato B. Distinguishing Choroidal Nevi from Melanomas Using the MOLES Algorithm: Evaluation in an Ocular Nevus Clinic. Ocul Oncol Pathol 2021; 7:294-302. [PMID: 34604203 PMCID: PMC8443944 DOI: 10.1159/000511363] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 09/02/2020] [Indexed: 01/11/2023] Open
Abstract
OBJECTIVE The aim of this study was to determine the sensitivity and specificity of the MOLES scoring system in differentiating choroidal melanomas from nevi according to Mushroom shape, Orange pigment, Large tumor size, Enlarging tumor, and Subretinal fluid (SRF). METHODS Color photographs, fundus-autofluorescence images, and optical coherence tomography of 222 melanocytic choroidal tumors were reviewed. Each MOLES feature was retrospectively scored between 0 and 2 and tumors categorized as "common nevus," "low-risk nevus," "high-risk nevus," and "probable melanoma" according to the total score. MOLES scores were compared with the experts' diagnosis of melanoma. RESULTS The MOLES scoring system indicated melanoma in all 81 tumors diagnosed as such by ocular oncologists (100% sensitivity) and nevus in 135 of 141 tumors given this diagnosis by these experts (95.7% specificity). Of the 6 tumors with discordant diagnoses, 4 had basal diameters exceeding 6 mm, all with SRF and/or orange pigment, and 2 small tumors showed either significant SRF with traces of orange pigment, or vice versa. CONCLUSIONS The MOLES system for diagnosing melanocytic choroidal tumors compares well with expert diagnosis but needs to be evaluated when deployed by ophthalmologists and community optometrists in a wide variety of working environments.
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Affiliation(s)
- Lamis Al Harby
- Ocular Oncology Service, Moorfields Eye Hospital, London, United Kingdom
- NIHR Biomedical Research Centre for Ophthalmology at Moorfields Eye Hospital and UCL Institute of Ophthalmology, London, United Kingdom
- University College London Institute of Ophthalmology, London, United Kingdom
| | - Mandeep S. Sagoo
- Ocular Oncology Service, Moorfields Eye Hospital, London, United Kingdom
- NIHR Biomedical Research Centre for Ophthalmology at Moorfields Eye Hospital and UCL Institute of Ophthalmology, London, United Kingdom
- University College London Institute of Ophthalmology, London, United Kingdom
| | - Roderick O'Day
- Ocular Oncology Service, Moorfields Eye Hospital, London, United Kingdom
| | - Gordon Hay
- Ocular Oncology Service, Moorfields Eye Hospital, London, United Kingdom
- NIHR Biomedical Research Centre for Ophthalmology at Moorfields Eye Hospital and UCL Institute of Ophthalmology, London, United Kingdom
- University College London Institute of Ophthalmology, London, United Kingdom
| | - Amit K. Arora
- Ocular Oncology Service, Moorfields Eye Hospital, London, United Kingdom
- NIHR Biomedical Research Centre for Ophthalmology at Moorfields Eye Hospital and UCL Institute of Ophthalmology, London, United Kingdom
| | - Pearse A. Keane
- NIHR Biomedical Research Centre for Ophthalmology at Moorfields Eye Hospital and UCL Institute of Ophthalmology, London, United Kingdom
- University College London Institute of Ophthalmology, London, United Kingdom
| | - Victoria M.-L. Cohen
- Ocular Oncology Service, Moorfields Eye Hospital, London, United Kingdom
- NIHR Biomedical Research Centre for Ophthalmology at Moorfields Eye Hospital and UCL Institute of Ophthalmology, London, United Kingdom
| | - Bertil Damato
- Ocular Oncology Service, Moorfields Eye Hospital, London, United Kingdom
- Nuffield Laboratory of Ophthalmology, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom
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17
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Singh AD, Grossniklaus HE. What's in a Name? Large Choroidal Nevus, Small Choroidal Melanoma, or Indeterminate Melanocytic Tumor. Ocul Oncol Pathol 2021; 7:235-238. [PMID: 34604194 PMCID: PMC8443921 DOI: 10.1159/000516536] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 04/01/2021] [Indexed: 01/23/2023] Open
Affiliation(s)
- Arun D. Singh
- Department of Ophthalmic Oncology, Cleveland Clinic Cole Eye Institute, Cleveland, Ohio, USA
| | - Hans E. Grossniklaus
- Departments of Ophthalmology and Pathology, Emory University School of Medicine, Atlanta, Georgia, USA
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18
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Brovkina AF, Stoyukhina AS, Musatkina IV. [Transformation of choroidal nevus into melanoma]. Vestn Oftalmol 2021; 137:5-17. [PMID: 34410051 DOI: 10.17116/oftalma20211370415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The risk of choroidal melanoma developing from choroidal nevus (CN) varies in range of 0.78-7%. Absence of a common terminology and distinct diagnostic criteria characterizing small melanoma de novo and unusual CN often complicates treatment choice and patient prognosis. PURPOSE To study the clinical features and the role of visualization methods in the diagnosis of CN transformation into melanoma. MATERIAL AND METHODS The study analyzes the clinical picture and visualization results of 11 patients with initial diagnosis of «choroidal nevus» (n=3) and «suspicious choroidal nevus» (n=8). RESULTS AND DISCUSSION Examination and continued observation revealed 7 patients to have melanoma that had developed from CN (2 of them confirmed with histological studies). The time before CN transformed into melanoma varied between 4 and 13 years, with median 5 [4; 12] years. Two patients were diagnosed with primary melanoma (melanoma de novo), two other patients - with suspicious CN. In progressive CN transforming into melanoma, visual impairments occurred between 6 months and 13 years in 6 out of 7 patients. Initial prominence of suspicious CN at the first visit was 1.9±0.68 mm (0.9 mm to 2.67 mm). The characteristic features of suspicious CN transforming into initial melanoma are: 1) asymmetric shape of the edges of expanded choroidal complex; 2) presence of areas of damaged choriocapillaris layer, direct and indirect signs of loss of integrity of the Bruch's membrane; 3) areas of accumulation of moderately hyperreflective subretinal exudate; 4) presence of intraretinal hyperreflective inclusions. The signs distinguishing primary choroidal melanoma from melanoma that had developed from CN are: 1) absence of areas with tomography pattern characteristic of nevi; 2) more pronounced asymmetry of the shape of edges, compared to melanoma developed from CN; 3) presence of cysts in larger tumors, compared to melanoma developed from CN. CONCLUSION All patients with CN should be regularly followed up by an ophthalmologist.
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Affiliation(s)
- A F Brovkina
- Russian Medical Academy of Postgraduate Education, Moscow, Russia
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19
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Vigués-Jorba L, Morwani R, Lorenzo D, Baradad-Jurjo MC, Arias L, Piulats JM, Gutiérrez C, Cobos E, Garcia-Bru P, Caminal JM. Survival in small choroidal melanocytic lesions with risk factors managed by initial observation until detection of tumour growth. Clin Exp Ophthalmol 2021; 49:251-259. [PMID: 33634911 DOI: 10.1111/ceo.13911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/21/2021] [Accepted: 02/23/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND The main objective was to describe metastatic and survival rates in patients with small choroidal melanocytic lesions initially managed by observation. METHODS Retrospective, observational study of consecutive cases recruited from 2001 through 2018, followed for a median (mean, range) of 81.0 (89.3, 10-204) months in a tertiary referral centre for ocular oncology. Seventy-five consecutive patients diagnosed with small choroidal melanocytic lesions with risk factors for growth initially observed and who showed progression during follow-up. Treatment was performed (plaque radiotherapy or enucleation in 96% and 4% of cases, respectively) at detection of tumour growth. RESULTS Median (mean, range) tumour thickness was 2.2 (2.23, 1.08-3.40) mm, and median maximum basal diameter was 8.5 (8.16, 4-12) mm. At diagnosis, a median (mean, range) of 5 (5.48, 1-8) risk factors for progression were present. Lesions grew at a median (mean, range) rate of 0.42 mm/y (1.12, 0-7.68) in thickness and 1.05 mm/y (3.14, 0-4.8) in maximum diameter. Median (mean, range) time until growth was 17.00 (32.6, 1-161) months post-diagnosis, at which time tumours were treated. Five patients developed local recurrence after brachytherapy requiring enucleation. Four patients developed hepatic metastasis. Melanoma-specific survival was 98% at 5 years (95% CI, 94.2-100%) and 91.6% (95% CI, 82-100%) at 10 and 15 years. CONCLUSION In small melanocytic lesions with risk factors for growth, initial observation until detection of tumour growth results in a seemingly low risk of metastasis, suggesting that this may be an initial approach to consider in tumours with indeterminate malignant potential.
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Affiliation(s)
- Laura Vigués-Jorba
- Department of Ophthalmology, Ocular Oncology and Vitreoretinal Service, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Rahul Morwani
- Department of Ophthalmology, Ocular Oncology and Vitreoretinal Service, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Daniel Lorenzo
- Department of Ophthalmology, Ocular Oncology and Vitreoretinal Service, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Maria C Baradad-Jurjo
- Department of Ophthalmology, Ocular Oncology and Vitreoretinal Service, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Luis Arias
- Department of Ophthalmology, Ocular Oncology and Vitreoretinal Service, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Josep M Piulats
- Department of Oncology, Catalan Institute of Oncology, Avinguda de la Gran Vía de l'Hospitalet, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Cristina Gutiérrez
- Department of Brachytherapy, Catalan Institute of Oncology, Avinguda de la Gran Vía de l'Hospitalet, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Estefania Cobos
- Department of Ophthalmology, Ocular Oncology and Vitreoretinal Service, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Pere Garcia-Bru
- Department of Ophthalmology, Ocular Oncology and Vitreoretinal Service, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Josep M Caminal
- Department of Ophthalmology, Ocular Oncology and Vitreoretinal Service, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain
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Al Harby L, Ali Z, Rajai A, Roberts SA, Peto T, Leung I, Gray J, Hay G, Arora AK, Keane PA, Cohen VML, Sagoo M, Balaskas K. Prospective validation of a virtual clinic pathway in the management of choroidal naevi: the NAEVUS study Report no. 1: safety assessment. Br J Ophthalmol 2020; 106:128-134. [PMID: 33037007 DOI: 10.1136/bjophthalmol-2020-317371] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 09/19/2020] [Accepted: 09/21/2020] [Indexed: 02/03/2023]
Abstract
BACKGROUND Choroidal naevi are a common incidental finding prompting specialist referrals to ocular oncology. Rarely, such lesions have sufficient suspicious features to diagnose a small melanoma. The aim of the study is to show that 'virtual' imaging-based pathways are a safe and efficient option to manage such referrals. METHODS A prospective cohort study at the Manchester Royal Eye Hospital and Moorfields Eye Hospital between June 2016 and July 2017 of the management decision of 400 patients reviewed by an ophthalmologist in a face-to-face consultation (gold standard) supported by fundus photography, optical coherence tomography, autofluorescence (AF) and B-mode ultrasound. The images were also read independently by blinded graders (non-medical) and blinded ophthalmologists, and a management decision was made based on image review alone (virtual pathway). The two pathways were compared for safety. RESULTS The agreement for management decisions between face-to-face and virtual pathways was 83.1% (non-medical) and 82.6% (medical). There were more over-referrals in the virtual pathway (non-medical 24.3%, medical 23.3% of gold standard discharge) and only two under-referrals (10.5% of gold standard referrals), both borderline cases with minimal clinical risk. The agreement for risk factors of growth (orange pigment, subretinal fluid, hyper-AF) ranged between 82.3% and 97.3%. CONCLUSIONS We prospectively validated a virtual clinic model for the safe management of choroidal naevi. Such a model of care is feasible with low rate of under-referral. An over-referral rate of almost 24% from the vitrual pathway needs to be factored into designing such pathways in conjunction with evidence on their cost-effectiveness.
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Affiliation(s)
- Lamis Al Harby
- Ocular Oncology, Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | - Zaria Ali
- Manchester Royal Eye Hospital, Manchester University NHS Foundation Trust, Manchester, UK
| | - Azita Rajai
- Manchester Royal Eye Hospital, Manchester University NHS Foundation Trust, Manchester, UK.,Centre for Biostatistics, School of Health Sciences, University of Manchester, Manchester, UK
| | - Stephen A Roberts
- Centre for Biostatistics, School of Health Sciences, University of Manchester, Manchester, UK
| | - Tunde Peto
- Centre for Public Health, Blackwell's Queen's University Belfast, Belfast, UK
| | - Irene Leung
- Moorfields Ophthalmic Reading Centre, NIHR Biomedical Research Centre at Moorfields Eye Hospital and UCL Institute of Ophthalmology, London, UK
| | - Jane Gray
- Manchester Royal Eye Hospital, Manchester University NHS Foundation Trust, Manchester, UK
| | - Gordon Hay
- Medical Retina, Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | - Amit K Arora
- Ocular Oncology, Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | - Pearse A Keane
- Moorfields Ophthalmic Reading Centre, NIHR Biomedical Research Centre at Moorfields Eye Hospital and UCL Institute of Ophthalmology, London, UK.,Medical Retina, Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | | | - Mandeep Sagoo
- Moorfields Ophthalmic Reading Centre, NIHR Biomedical Research Centre at Moorfields Eye Hospital and UCL Institute of Ophthalmology, London, UK.,Barts Health NHS Trust, London, UK
| | - Konstantinos Balaskas
- Moorfields Ophthalmic Reading Centre, NIHR Biomedical Research Centre at Moorfields Eye Hospital and UCL Institute of Ophthalmology, London, UK .,Medical Retina, Moorfields Eye Hospital NHS Foundation Trust, London, UK
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Paez-Escamilla M, Jhingan M, Gallagher DS, Singh SR, Fraser-Bell S, Chhablani J. Age-related macular degeneration masqueraders: From the obvious to the obscure. Surv Ophthalmol 2020; 66:153-182. [PMID: 32971140 DOI: 10.1016/j.survophthal.2020.08.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 08/21/2020] [Accepted: 08/24/2020] [Indexed: 01/05/2023]
Abstract
Age-related macular degeneration (AMD) is one of the leading causes of blindness worldwide with increasing prevalence owing to increased life expectancy. Intravitreal injections of antivascular endothelial growth factor agents are commonly used in exudative AMD and oral antioxidant medication for nonexudative AMD; however, many disorders mimic exudative and nonexudative AMD, and misdiagnosis can seriously affect the management of these patients. We summarize the demographics and clinical and imaging characteristics of each of the conditions that masquerade as AMD. As some of the conditions have features of AMD, a short update on the classical features of AMD is also included.
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Affiliation(s)
- Manuel Paez-Escamilla
- Department of Ophthalmology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Mahima Jhingan
- Jacobs Retina Center at Shiley Eye Center, University of California, San Diego, La Jolla, California, USA
| | - Denise S Gallagher
- Department of Ophthalmology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Sumit Randhir Singh
- Jacobs Retina Center at Shiley Eye Center, University of California, San Diego, La Jolla, California, USA
| | | | - Jay Chhablani
- Department of Ophthalmology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA.
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The MOLES System for Planning Management of Melanocytic Choroidal Tumors: Is It Safe? Cancers (Basel) 2020; 12:cancers12051311. [PMID: 32455720 PMCID: PMC7281649 DOI: 10.3390/cancers12051311] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/18/2020] [Accepted: 05/19/2020] [Indexed: 02/03/2023] Open
Abstract
PURPOSE To evaluate the MOLES system for identifying malignancy in melanocytic choroidal tumors in patients treated for choroidal melanoma. METHODS Records of 615 patients treated for choroidal melanoma between January 2017 and December 2019 were reviewed. Patients were excluded if iris and/or ciliary body involvement (106 patients), inadequate fundus photography (26 patients), no images available for review (21 patients) and/or treatment was not primary (11 patients). Demographic data and AJCC TNM Stage were collected. Color fundus and autofluorescence photographs (FAF), optical coherence tomography (OCT) and B-scan ultrasounds were prospectively reviewed. MOLES scores were assigned according to five criteria: mushroom shape, orange pigment, large size, enlarging tumor and subretinal fluid. RESULTS A total of 451 patients (mean age, 63.9 ± 13.9 years) were included. At treatment, mean largest basal tumor diameter (LBD) and thickness were10.3 ± 2.8 mm (range, 3.0-23.0) and 4.3 mm (range, 1.0-17.0). All but one (0.2%) had MOLES scores of ≥3. Eighty-two patients were treated after surveillance lasting a mean of 1.5 years. Initially, most (63/82; 76.8%) had a MOLES score ≥ 3. Importantly, none of the 451 tumors had a score of <2, and as such, the MOLES protocol would have indicated referral to an ocular oncologist for 100% of patients. CONCLUSION The MOLES scoring system is a sensitive (99.8%) tool for indicating malignancy in melanocytic choroidal tumors (MOLES ≥ 3). If the examining practitioner can recognize the five features suggestive of malignancy, MOLES is a safe tool to optimize referral of melanocytic choroidal tumors for specialist care.
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Barsam AS, Gibbons A, McClellan AJ, Harbour JW, Smiddy WE. Follow the nevus: the cost-utility of monitoring for growth of choroidal nevi. Int J Ophthalmol 2019; 12:1456-1464. [PMID: 31544043 PMCID: PMC6739572 DOI: 10.18240/ijo.2019.09.14] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 06/11/2019] [Indexed: 12/15/2022] Open
Abstract
AIM To develop a model to evaluate the cost-utility of choroidal nevi monitoring recommendations with varying clinical risk factors. METHODS A Markov model was created to evaluate the cost-utility in cost per quality-adjusted life-year ($/QALY) for monitoring patients with choroidal nevus. This probabilistic model was applied both to a hypothetically monitored and unmonitored group of patients beginning at different ages and with varying clinical risk factors of the nevus. Duration of screening was modeled for the remainder of the patients' life expectancy. Best available clinical data on the prevalence and incidence of choroidal nevi/melanoma, and relative risk of nevus transformation were combined with the initial and downstream costs of screening, downstream costs of melanoma-related mortality, and QALY saved by monitoring, to estimate the best monitoring regimen. Main outcome measures were average $/QALY saved by consensus recommended monitoring scenarios for the duration of a patient's remaining life expectancy in comparison with no follow-up, and the cost-utility of modified regimens. RESULTS The $/QALY of the recommended monitoring scenarios varied substantially based on nevus clinical risk factors, patient age, frequency of follow-up, and objective testing utilized. The $/QALY for the recommended monitoring scenario of a flat nevus without risk factors in a 60-year-old patient was $77 180. The $/QALY for monitoring a nevus with 3 clinical risk factors in a 60-year-old patient was $85 393. The $/QALY values for differently-aged patients were larger, and intermediate degrees of risk factors for nevus growth varied, depending largely upon the specifics of the modeled monitoring scenarios. CONCLUSION The average $/QALY of currently recommended monitoring scenarios fall within economically acceptable standards and could provide insight for formulating appropriate clinical strategies. Cost-utility could be enhanced by targeting higher risk groups and considering less frequent monitoring for the lower risk groups.
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Affiliation(s)
- Alexander S. Barsam
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Florida 33136, United States
| | - Allister Gibbons
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Florida 33136, United States
| | | | - J. William Harbour
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Florida 33136, United States
| | - William E. Smiddy
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Florida 33136, United States
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Brouwer NJ, Gezgin G, Wierenga APA, Bronkhorst IHG, Marinkovic M, Luyten GPM, Versluis M, Kroes WGM, van der Velden PA, Verdijk RM, Jager MJ. Tumour Angiogenesis in Uveal Melanoma Is Related to Genetic Evolution. Cancers (Basel) 2019; 11:E979. [PMID: 31337000 PMCID: PMC6678109 DOI: 10.3390/cancers11070979] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 06/27/2019] [Accepted: 07/11/2019] [Indexed: 11/17/2022] Open
Abstract
Increased angiogenesis is associated with a higher metastasis- and mortality rate in uveal melanoma (UM). Recently, it was demonstrated that genetic events, such as 8q-gain and BAP1-loss, influence the level of immune infiltrate. We aimed to determine whether genetic events, and specific cytokines, relate to angiogenesis in UM. Data from UM patients who underwent enucleation between 1999 and 2008 were analysed. Microvascular density (MVD) and the presence of infiltrating immune cells were determined with immunohistochemistry (IHC) and immunofluorescence in 43 cases. Chromosome status, BAP1 IHC and mRNA expression of angiogenesis-related genes were known in 54 cases. Tumours with monosomy 3/BAP1-loss showed a higher MVD compared to tumours with disomy 3/normal BAP1 expression (p = 0.008 and p = 0.004, respectively). Within BAP1-positive lesions (n = 20), 8q-gain did not relate to MVD (p = 0.51). A high MVD was associated with an increased expression of angiopoietin 2 (ANGPT2) (p = 0.041), Von Willebrand Factor (VWF) (p = 0.010), a decreased expression of vascular endothelial growth factor B (VEGF-B) (p = 0.024), and increased numbers of tumour-infiltrating macrophages (CD68+, p = 0.017; CD68+CD163+, p = 0.031) and lymphocytes (CD4+, p = 0.027). Concluding, vascular density of UM relates to its genetic profile: Monosomy 3 and BAP1-loss are associated with an increased MVD, while an early event (gain of 8q) is not independently related to MVD, but may initiate a preparation phase towards development of vessels. Interestingly, VEGF-B expression is decreased in UM with a high MVD.
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Affiliation(s)
- Niels J Brouwer
- Department of Ophthalmology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
| | - Gülçin Gezgin
- Department of Ophthalmology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
| | - Annemijn P A Wierenga
- Department of Ophthalmology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
| | - Inge H G Bronkhorst
- Department of Ophthalmology, Jeroen Bosch Hospital, 5223 GZ 's-Hertogenbosch, The Netherlands
| | - Marina Marinkovic
- Department of Ophthalmology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
| | - Gregorius P M Luyten
- Department of Ophthalmology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
| | - Mieke Versluis
- Department of Ophthalmology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
| | - Wilma G M Kroes
- Department of Clinical Genetics, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
| | - Pieter A van der Velden
- Department of Ophthalmology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
| | - Robert M Verdijk
- Department of Pathology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
- Department of Pathology, Erasmus University Medical Center, 3015 GD Rotterdam, The Netherlands
| | - Martine J Jager
- Department of Ophthalmology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands.
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GROSSNIKLAUS HANSE, VAN MEIR ERWING. Are Risk Factors for Growth of Choroidal Nevi Associated With Malignant Transformation? Assessment With a Validated Genomic Biomarker. Am J Ophthalmol 2019; 203:117-118. [PMID: 31109628 PMCID: PMC9840877 DOI: 10.1016/j.ajo.2019.01.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 01/04/2019] [Indexed: 01/17/2023]
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Kulikov AN, Maltsev DS, Burnasheva MA, Chhablani J. Characterization of Choroidal Nevi with Dark-Field Infrared Scanning Laser Ophthalmoscopy. Ophthalmol Retina 2019; 3:703-708. [PMID: 31056378 DOI: 10.1016/j.oret.2019.03.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Revised: 02/23/2019] [Accepted: 03/12/2019] [Indexed: 11/17/2022]
Abstract
PURPOSE To compare dark-field (DF) scanning laser ophthalmoscopy (SLO) against en face OCT and color fundus photography (CFP) in imaging of choroidal nevi and determining lesion area and to describe the characteristics of choroidal nevi using DF SLO. DESIGN Prospective cohort study. PARTICIPANTS Multimodal imaging, including DF SLO, OCT, and CFP, was performed in 24 patients (24 eyes; 10 men and 14 women; mean age, 45.1±13.4 years) with choroidal nevi and 14 healthy age-matched volunteers (24 eyes). METHODS For each imaging method, the area under the receiver operating characteristic curve was constructed to evaluate the ability to identify choroidal nevi. Using DF SLO, each nevus was characterized according to the intensity of the shadow, clarity of the borders, and presence of additional pigmentation. The lesion area was measured by 2 graders for each imaging method. The intraclass correlation coefficient and intergrader correlation coefficient were calculated. MAIN OUTCOME MEASURES Agreement of DF SLO with CFP and en face OCT in visualization of choroidal nevi. RESULTS Dark-field SLO showed the highest area under the receiver operating characteristic curve, 1.0, compared with en face OCT and CFP, 0.9 (P = 0.04) and 0.88 (P = 0.025), respectively. Using DF SLO in 17 patients (70.8%) and 7 patients (29.2%), nevus demonstrated dense and partially transparent shadow, respectively. In 10 patients (41.7%) and 14 patients (58.3%), nevus demonstrated sharp and blurred borders, respectively. Additional pigmentation was found in 5 patients (20.8%). The agreement in the evaluation of the area of the nevus between DF SLO and en face OCT and between DF SLO and CFP for grader 1 was 0.89 and 0.95, respectively, and for grader 2 was 0.95 and 0.95, respectively. Weighted κ values in reproducibility analysis for DF SLO, en face OCT, and CFP were 0.8, 0.71, and 0.67, respectively. CONCLUSIONS Dark-field SLO demonstrated excellent potential for identifying choroidal nevi and was in full agreement with conventional methods in the evaluation of the area of choroidal nevi.
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Affiliation(s)
- Alexei N Kulikov
- Department of Ophthalmology, Military Medical Academy, St. Petersburg, Russia
| | - Dmitrii S Maltsev
- Department of Ophthalmology, Military Medical Academy, St. Petersburg, Russia.
| | - Maria A Burnasheva
- Department of Ophthalmology, Military Medical Academy, St. Petersburg, Russia
| | - Jay Chhablani
- Smt. Kanuri Santhamma Retina Vitreous Centre, L. V. Prasad Eye Institute, Kallam Anji Reddy Campus, Banjara Hills, Hyderabad, India
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