👉 Neuroblastoma, also known as neurofibromatosis type 1 (NF1), is a rare genetic disorder characterized by the development of tumors in nerve cells. It is caused by mutations in the NF1 gene that leads to an abnormal growth pattern and misalignment of nerve cells. The disease can be inherited or acquired, with some cases being familial. The symptoms of neuroblastoma include: - Neurofibromatosis type 1 (NF1) syndrome - Increased risk