Neurofibromatosis type 1 (NF1) is associated with systemic vascular disease, and it can also affect intracranial vasculature in a small percentage of patients. Very rarely, NF1 may co-present with hypoplasia of the internal carotid artery (ICA). Prior reports have documented NF1 with bilateral optic gliomas and a unilateral hypoplastic internal carotid artery; however, we report a case with the aforementioned findings in addition to a right-sided lentiform mass. This case report further suggests a common congenital pathway related to neurofibromin loss of function resulting in both nerve sheath tumors and cerebrovascular anomalies.
Keywords: aplastic internal carotid artery; hypoplastic internal carotid artery; intracranial mass; intracranial vascular malformations; lentiform mass; nerve sheath tumor; neurofibromatosis; neurofibromin; neurovascular abnormalities; optic glioma.