Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Revised diagnostic criteria for neurofibromatosis type 1 and Legius syndrome: an international consensus recommendation

Legius, Eric, Messiaen, Ludwine, Wolkenstein, Pierre, Pancza, Patrice, Avery, Robert A., Berman, Yemima, Blakeley, Jaishri, Babovic-Vuksanovic, Dusica, Cunha, Karin Soares, Ferner, Rosalie, Fisher, Michael J., Friedman, Jan M., Gutmann, David H., Kehrer-Sawatzki, Hildegard, Korf, Bruce R., Mautner, Victor-Felix, Peltonen, Sirkku, Rauen, Katherine A., Riccardi, Vincent, Schorry, Elizabeth, Stemmer-Rachamimov, Anat, Stevenson, David A., Tadini, Gianluca, Ullrich, Nicole J., Viskochil, David, Wimmer, Katharina, Yohay, Kaleb, Gomes, Alicia, Jordan, Justin T., Mautner, Victor, Merker, Vanessa L., Smith, Miriam J., Stevenson, David, Anten, Monique, Aylsworth, Arthur, Baralle, Diana, Barbarot, Sebastien, Barker, Fred, Ben-Shachar, Shay, Bergner, Amanda, Bessis, Didier, Blanco, Ignacio, Cassiman, Catherine, Ciavarelli, Patricia, Clementi, Maurizio, Frébourg, Thierry, Giovannini, Marco, Halliday, Dorothy, Hammond, Chris, Hanemann, C. O., Hanson, Helen, Heiberg, Arvid, Joly, Pascal, Kalamarides, Michel, Karajannis, Matthias, Kroshinsky, Daniela, Larralde, Margarita, Lázaro, Conxi, Le, Lu, Link, Michael, Listernick, Robert, MacCollin, Mia, Mallucci, Conor, Moertel, Christopher, Mueller, Amy, Ngeow, Joanne, Oostenbrink, Rianne, Packer, Roger, Papi, Laura, Parry, Allyson, Peltonen, Juha, Pichard, Dominique, Poppe, Bruce, Rezende, Nilton, Rodrigues, Luiz Oswaldo, Rosser, Tena, Ruggieri, Martino, Serra, Eduard, Steinke-Lange, Verena, Stivaros, Stavros Michael, Taylor, Amy, Toelen, Jaan, Tonsgard, James, Trevisson, Eva, Upadhyaya, Meena, Varan, Ali, Wilson, Meredith, Wu, Hao, Zadeh, Gelareh, Huson, Susan M., Evans, D. Gareth and Plotkin, Scott R. 2021. Revised diagnostic criteria for neurofibromatosis type 1 and Legius syndrome: an international consensus recommendation. Genetics in Medicine 23 (8) , pp. 1506-1513. 10.1038/s41436-021-01170-5

[thumbnail of s41436-021-01170-5.pdf] PDF - Published Version
Available under License Creative Commons Attribution.

Download (520kB)


Purpose By incorporating major developments in genetics, ophthalmology, dermatology, and neuroimaging, to revise the diagnostic criteria for neurofibromatosis type 1 (NF1) and to establish diagnostic criteria for Legius syndrome (LGSS). Methods We used a multistep process, beginning with a Delphi method involving global experts and subsequently involving non-NF experts, patients, and foundations/patient advocacy groups. Results We reached consensus on the minimal clinical and genetic criteria for diagnosing and differentiating NF1 and LGSS, which have phenotypic overlap in young patients with pigmentary findings. Criteria for the mosaic forms of these conditions are also recommended. Conclusion The revised criteria for NF1 incorporate new clinical features and genetic testing, whereas the criteria for LGSS were created to differentiate the two conditions. It is likely that continued refinement of these new criteria will be necessary as investigators (1) study the diagnostic properties of the revised criteria, (2) reconsider criteria not included in this process, and (3) identify new clinical and other features of these conditions. For this reason, we propose an initiative to update periodically the diagnostic criteria for NF1 and LGSS.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Additional Information: This article is licensed under a Creative Commons Attribution 4.0 International License
Publisher: American College of Medical Genetics and Genomics
ISSN: 1098-3600
Date of First Compliant Deposit: 27 August 2021
Date of Acceptance: 26 March 2021
Last Modified: 15 May 2023 01:39

Citation Data

Cited 88 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item Edit Item


Downloads per month over past year

View more statistics