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Title: Jaffe-Campanacci syndrome, revisited: detailed clinical and molecular analyses determine whether patients have neurofibromatosis type 1, coincidental manifestations, or a distinct disorder
Authors: Stewart, Douglas R ×
Brems, Hilde
Gomes, Alicia G
Ruppert, Sarah L
Callens, Tom
Williams, Jennifer
Claes, Kathleen
Bober, Michael B
Hachen, Rachel
Kaban, Leonard B
Li, Hua
Lin, Angela
McDonald, Marie
Melancon, Serge
Ortenberg, June
Radtke, Heather B
Samson, Ignace
Saul, Robert A
Shen, Joseph
Siqveland, Elizabeth
Toler, Tomi L
van Maarle, Merel
Wallace, Margaret
Williams, Misti
Legius E, Eric
Messiaen, Ludwine #
Issue Date: Jun-2014
Publisher: Williams & Wilkins
Series Title: Genetics in Medicine vol:16 issue:6 pages:448-59
Article number: 10.1038/gim.2013.163
Abstract: Purpose:"Jaffe-Campanacci syndrome" describes the complex of multiple nonossifying fibromas of the long bones, mandibular giant cell lesions, and café-au-lait macules in individuals without neurofibromas. We sought to determine whether Jaffe-Campanacci syndrome is a distinct genetic entity or a variant of neurofibromatosis type 1.Methods:We performed germline NF1, SPRED1, and GNAS1 (exon 8) mutation testing on patients with Jaffe-Campanacci syndrome or Jaffe-Campanacci syndrome-related features. We also performed somatic NF1 mutation testing on nonossifying fibromas and giant cell lesions.Results:Pathogenic germline NF1 mutations were identified in 13 of 14 patients with multiple café-au-lait macules and multiple nonossifying fibromas or giant cell lesions ("classical" Jaffe-Campanacci syndrome); all 13 also fulfilled the National Institutes of Health diagnostic criteria for neurofibromatosis type 1. Somatic NF1 mutations were detected in two giant cell lesions but not in two nonossifying fibromas. No SPRED1 or GNAS1 (exon 8) mutations were detected in the seven NF1-negative patients with Jaffe-Campanacci syndrome, nonossifying fibromas, or giant cell lesions.Conclusion:In this study, the majority of patients with café-au-lait macules and nonossifying fibromas or giant cell lesions harbored a pathogenic germline NF1 mutation, suggesting that many Jaffe-Campanacci syndrome cases may actually have neurofibromatosis type 1. We provide the first proof of specific somatic second-hit mutations affecting NF1 in two giant cell lesions from two unrelated patients, establishing these as neurofibromatosis type 1-associated tumors.Genet Med advance online publication 14 November 2013Genetics in Medicine (2013); doi:10.1038/gim.2013.163.
URI: 
ISSN: 1098-3600
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Department of Human Genetics - miscellaneous
× corresponding author
# (joint) last author

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