Christoph Müller, Harald Kittler, Philipp Tschandl, Christoph Rinner, Marie-Luise Grausenburger, Athanassios Kyrgidis, Hiroshi Koga, Elvira Moscarella, Zoe Apalla, Alessandro Di Stefani, Ken Kobayashi, Elisabeth Lazaridou, Caterina Longo, Alice Phan, Toshiaki Saida, Elena Sotiriou, Masaru Tanaka, Luc Thomas, Iris Zalaudek, Giuseppe Argenziano, Aimilios Lallas
{"title":"Validation of a Dermatoscopy-Based Algorithm for the Diagnosis of Acral Melanoma.","authors":"Christoph Müller, Harald Kittler, Philipp Tschandl, Christoph Rinner, Marie-Luise Grausenburger, Athanassios Kyrgidis, Hiroshi Koga, Elvira Moscarella, Zoe Apalla, Alessandro Di Stefani, Ken Kobayashi, Elisabeth Lazaridou, Caterina Longo, Alice Phan, Toshiaki Saida, Elena Sotiriou, Masaru Tanaka, Luc Thomas, Iris Zalaudek, Giuseppe Argenziano, Aimilios Lallas","doi":"10.1159/000541591","DOIUrl":null,"url":null,"abstract":"<p><strong>Introduction: </strong>Diagnosis of acral melanocytic lesions can be challenging. The BRAAFF checklist was introduced as a tool to help differentiate between acral nevi and melanoma but has not been validated.</p><p><strong>Methods: </strong>We asked raters with varying expertise in dermatoscopy to diagnose dermatoscopic images of 533 acral nevi and 144 melanomas via an online platform with and without use of the BRAAFF checklist. From the ratings, we calculated sensitivity, specificity, and interrater agreement. Additionally, a new simplified version of the checklist was also tested.</p><p><strong>Results: </strong>We collected 6,880 ratings from 175 readers. The BRAAFF checklist achieved a sensitivity of 92.5% and a specificity of 65.0%, which was similar to diagnosis from pattern recognition (sensitivity 90.0%, specificity: 72.1%). Interrater agreement for the BRAAFF criteria ranged from fair to moderate, with lowest agreement for parallel ridge and fibrillar pattern (alpha = 0.31) and highest for asymmetry of colors and structures (alpha = 0.46). Agreement and diagnostic accuracy were higher for more experienced readers. A simplified version with only two criteria achieved similar sensitivity (95.0%) and lower specificity (60.0%) as the original BRAAFF checklist.</p><p><strong>Conclusion: </strong>The BRAAFF checklist is a useful tool for the diagnosis of melanocytic acral lesions with acceptable sensitivity and reasonable specificity but is not superior to pattern recognition. A simplified version of the checklist could be easier to use with equal sensitivity while exhibiting a modest reduction in specificity.</p>","PeriodicalId":11185,"journal":{"name":"Dermatology","volume":" ","pages":"793-802"},"PeriodicalIF":3.0000,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11651327/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Dermatology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1159/000541591","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/10/5 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"DERMATOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Introduction: Diagnosis of acral melanocytic lesions can be challenging. The BRAAFF checklist was introduced as a tool to help differentiate between acral nevi and melanoma but has not been validated.
Methods: We asked raters with varying expertise in dermatoscopy to diagnose dermatoscopic images of 533 acral nevi and 144 melanomas via an online platform with and without use of the BRAAFF checklist. From the ratings, we calculated sensitivity, specificity, and interrater agreement. Additionally, a new simplified version of the checklist was also tested.
Results: We collected 6,880 ratings from 175 readers. The BRAAFF checklist achieved a sensitivity of 92.5% and a specificity of 65.0%, which was similar to diagnosis from pattern recognition (sensitivity 90.0%, specificity: 72.1%). Interrater agreement for the BRAAFF criteria ranged from fair to moderate, with lowest agreement for parallel ridge and fibrillar pattern (alpha = 0.31) and highest for asymmetry of colors and structures (alpha = 0.46). Agreement and diagnostic accuracy were higher for more experienced readers. A simplified version with only two criteria achieved similar sensitivity (95.0%) and lower specificity (60.0%) as the original BRAAFF checklist.
Conclusion: The BRAAFF checklist is a useful tool for the diagnosis of melanocytic acral lesions with acceptable sensitivity and reasonable specificity but is not superior to pattern recognition. A simplified version of the checklist could be easier to use with equal sensitivity while exhibiting a modest reduction in specificity.
期刊介绍:
Published since 1893, ''Dermatology'' provides a worldwide survey of clinical and investigative dermatology. Original papers report clinical and laboratory findings. In order to inform readers of the implications of recent research, editorials and reviews prepared by invited, internationally recognized scientists are regularly featured. In addition to original papers, the journal publishes rapid communications, short communications, and letters to ''Dermatology''. ''Dermatology'' answers the complete information needs of practitioners concerned with progress in research related to skin, clinical dermatology and therapy. The journal enjoys a high scientific reputation with a continually increasing impact factor and an equally high circulation.