Nasal gliomas are congenital lesions of neurogenic origin that consist of glial cells outside of the central nervous system (CNS) that do not directly communicate with the CNS. They are speculated to result from closure of the cribriform plate, inappropriate closure of the anterior neuropore, or perhaps from an encephalocele that no longer communicates with the CNS. Also called nasal glial heterotopia, diagnosis is typically in infancy or early childhood (although rarely they may be diagnosed incidentally in adults). Most commonly extranasal, with a hemangioma-like appearance and telangiectasia. May also appear intranasally or in combination. Can cause nasal congestion and obstruction.
Management typically involves early surgical excision.
ICD10CM: Q30.8 – Other congenital malformations of nose