Neurofibromatosis presenting with a cherubism phenotype
C I van Capelle1, P H G Hogeman, C J M van der Sijs-Bos
1Department of Pediatrics, Meander Medisch Centrum, Amersfoort, The Netherlands.
European Journal of Pediatrics
|November 23, 2006
Summary
This case study details a child with neurofibromatosis type 1 (NF1) and cherubism, confirmed by genetic testing and biopsy. It highlights a rare presentation of these two conditions without extragnathic lesions.
Area of Science:
- Genetics
- Pediatrics
- Dermatology
Background:
- Neurofibromatosis type 1 (NF1) is a genetic disorder causing tumors to grow on nerves.
- Cherubism is a rare genetic disorder characterized by bone enlargement in the jaw and face.
Observation:
- A child presented with clinical signs of both NF1 and cherubism.
- Genetic testing confirmed a mutation in the NF-1 gene, indicative of NF1.
- Mandibular biopsy and radiological evaluation were consistent with cherubism.
Findings:
- This is the first reported case of a child with confirmed NF1 and cherubism lacking extragnathic lesions.
- The study identifies NF1 as a potential genetic factor associated with cherubism phenotypes.
Implications:
- Cherubism can present as a clinical phenotype linked to various germline mutations, including those in SH3BP2, PTPN11, and NF1.
- This case broadens the understanding of NF1's phenotypic variability and its potential overlap with other genetic disorders.
- Highlights the importance of comprehensive genetic and clinical evaluation in complex pediatric cases.
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