Recurrent Multilocular Mandibular Giant Cell Granuloma in Neurofibromatosis Type 1: Evidence for Second Hit Mutation of NF1 Gene in the Jaw Lesion and Treatment with Curettage and Bone Substitute Materials
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Recurrent Multilocular Mandibular Giant Cell Granuloma in Neurofibromatosis Type 1: Evidence for Second Hit Mutation of NF1 Gene in the Jaw Lesion and Treatment with Curettage and Bone Substitute Materials. / Friedrich, Reinhard; Grob, Tobias; Hollants, Silke; Zustin, Jozef; Spaepen, Marijke; Mautner, Viktor-Felix; Lübke, Andreas; Hagel, Christian; Legius, Eric; Brems, Hilde.
In: J CRANIO MAXILL SURG, Vol. 44, No. 8, 15.05.2016, p. 1054-1060.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - Recurrent Multilocular Mandibular Giant Cell Granuloma in Neurofibromatosis Type 1: Evidence for Second Hit Mutation of NF1 Gene in the Jaw Lesion and Treatment with Curettage and Bone Substitute Materials
AU - Friedrich, Reinhard
AU - Grob, Tobias
AU - Hollants, Silke
AU - Zustin, Jozef
AU - Spaepen, Marijke
AU - Mautner, Viktor-Felix
AU - Lübke, Andreas
AU - Hagel, Christian
AU - Legius, Eric
AU - Brems, Hilde
PY - 2016/5/15
Y1 - 2016/5/15
N2 - Giant cell granuloma (GCG) of the jaw is a rare, well-known feature of neurofibromatosis type 1 (NF1), an inborn multisystem disorder. Recently, the development of GCG in NF1 was attributed to second hit mutations in the NF1 gene. The treatment of GCG is pragmatic with a preference for local curettage of lytic osseous areas. This report describes the surgical therapy of an NF1-affected female with multilocular mandibular GCG and hypodontia who additionally suffered from a brain tumour and Hashimoto’s thyroiditis. Although local recurrence of GCG was noted, augmentation of the curetted cavities with a bone substitute in successive interventions successfully restored the extensive periradicular local defects and stabilised the teeth. A meticulous in vitro study of the GCG specimen revealed a second hit mutation in the NF1 gene in the GCG spindle-cells. This study contributes to the increasing knowledge of the molecular basis for GCG in the jaw of NF1 patients, indicating that it is a neoplasm.
AB - Giant cell granuloma (GCG) of the jaw is a rare, well-known feature of neurofibromatosis type 1 (NF1), an inborn multisystem disorder. Recently, the development of GCG in NF1 was attributed to second hit mutations in the NF1 gene. The treatment of GCG is pragmatic with a preference for local curettage of lytic osseous areas. This report describes the surgical therapy of an NF1-affected female with multilocular mandibular GCG and hypodontia who additionally suffered from a brain tumour and Hashimoto’s thyroiditis. Although local recurrence of GCG was noted, augmentation of the curetted cavities with a bone substitute in successive interventions successfully restored the extensive periradicular local defects and stabilised the teeth. A meticulous in vitro study of the GCG specimen revealed a second hit mutation in the NF1 gene in the GCG spindle-cells. This study contributes to the increasing knowledge of the molecular basis for GCG in the jaw of NF1 patients, indicating that it is a neoplasm.
U2 - 10.1016/j.jcms.2016.05.010
DO - 10.1016/j.jcms.2016.05.010
M3 - SCORING: Journal article
VL - 44
SP - 1054
EP - 1060
JO - J CRANIO MAXILL SURG
JF - J CRANIO MAXILL SURG
SN - 1010-5182
IS - 8
ER -