Journal of medical case reports · 2025
A case of neurofibromatosis type 1 with neurofibromatosis type 1-related and neurofibromatosis type 1-unrelated tumors: a case report.
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Hartung Tabea I, Karimi Qais, Kluwe Lan, Farschtschi Said C
Аннотация
BACKGROUND: Neurofibromatosis type 1 is an autosomal dominantly inherited disorder caused by pathogenic variants in the neurofibromatosis type 1 gene, resulting in a predisposition to multiple tumors. Typical neurofibromatosis type 1-associated tumors include cutaneous and plexiform neurofibromas, optic pathway gliomas, breast cancer, and malignant peripheral nerve sheath tumors. The aim of the study was to report a rare case with multiple neurofibromatosis type 1-unrelated tumors in addition to neurofibromatosis type 1-related ones.
CASE PRESENTATION: A 36-year-old Caucasian female patient with neurofibromatosis type 1 had a rare tumor spectrum including ganglioglioma, malignant teratoma, pheochromocytoma, vestibular schwannoma, and meningioma in addition to typical neurofibromatosis type 1 tumors such as cutaneous and plexiform neurofibromas. A pathogenic variant in the neurofibromatosis type 1 gene (c.2446C > T, p.Arg816*) was identified in blood-derived DNA while no pathogenic variant was found in the neurofibromatosis type 2 gene.
CONCLUSION: Though rare, multiple neurofibromatosis type 1-unrelated tumors can develop in neurofibromatosis type 1 patients, which demands attention and interdisciplinary management. All related genes should be screened for potential pathogenic variants.
CASE PRESENTATION: A 36-year-old Caucasian female patient with neurofibromatosis type 1 had a rare tumor spectrum including ganglioglioma, malignant teratoma, pheochromocytoma, vestibular schwannoma, and meningioma in addition to typical neurofibromatosis type 1 tumors such as cutaneous and plexiform neurofibromas. A pathogenic variant in the neurofibromatosis type 1 gene (c.2446C > T, p.Arg816*) was identified in blood-derived DNA while no pathogenic variant was found in the neurofibromatosis type 2 gene.
CONCLUSION: Though rare, multiple neurofibromatosis type 1-unrelated tumors can develop in neurofibromatosis type 1 patients, which demands attention and interdisciplinary management. All related genes should be screened for potential pathogenic variants.