The relationship between neurofibromatosis type 1, juvenile xanthogranuloma, and malignancy: A retrospective case-control study - 14/12/17
Abstract |
Background |
Neurofibromatosis type 1 (NF-1) predisposes individuals to the development of benign and malignant tumors. The association of NF-1, juvenile xanthogranuloma (JXG), and juvenile myelomonocytic leukemia has been described in the literature. It is unclear whether JXG alone constitute a risk factor for leukemia or other malignancies in children with NF-1.
Objective |
To determine if there is an association between NF-1, JXG, and malignancy.
Methods |
We conducted a retrospective case-control study comparing children with NF-1 and malignancy (cases) with sex- and age-matched children with NF-1 without malignancy (controls).
Results |
We identified 739 patients with NF-1 over a 20-year period, 14 of whom also had a diagnosis of malignancy. These cases include 9 (64%) boys and 5 (36%) girls. JXG were found in 4/14 (28.5%) cases and 6/29 (21%) controls (odds ratio 1.5, 95% confidence interval 0.35-6.6, P = .56).
Limitations |
Retrospective design, small number of cases, and inconsistent documentation of clinical findings, including age at disappearance of JXG.
Conclusions |
Juvenile xanthogranulomas do not appear to confer an increased risk for malignancy in children with NF-1.
Le texte complet de cet article est disponible en PDF.Key words : juvenile xanthogranuloma, leukemia, malignancy, malignant tumors, neurofibromatosis type 1
Abbreviations used : JMML, JXG, NF-1
Plan
Funding sources: Supported by The Hospital for Sick Children Foundation Neurofibromatosis Research Fund. |
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Conflicts of interest: None declared. |
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Reprints not available from the authors. |
Vol 76 - N° 6
P. 1084-1087 - juin 2017 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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