Paediatrics Publications
Title
The Relationship Between Neurofibromatosis Type 1, Juvenile Xanthogranuloma, and Malignancy: A retrospective case-control study
Document Type
Article
Publication Date
6-2017
Journal
Journal of the American Academy of Dermatology
Volume
76
Issue
6
First Page
1084
Last Page
1087
URL with Digital Object Identifier
https://doi.org/10.1016/j.jaad.2016.12.012
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.
