Nasal glioma (NG) also known as nasal cerebral heterotopia is a subcutaneous tumour made primarily of mature astrocytes that can be seen either at the nasal radix or in the nasal cavity. A rare developmental anomaly, nasal glial heterotopia is especially uncommon in adults. Divided from an intranasal form (60%) is an extra nasal form. 10% of forms are mixed. These lesions are typically congenital in origin. Adult cases are uncommon, and affected people frequently exhibit non-specific nasal symptoms or are asymptomatic. A chance discovery of heterotopic glial tissue serves as the basis for the diagnosis. These are treated by complete surgical excision. Surgery is recommended to histologically confirm the diagnosis, to lower the risk of local infection with a potential risk of intracranial suppuration,and to minimize the nasal deformity. Nasal gliomas are encephalocele variants that can be safely removed using endoscopic methods as they are not true neoplasms.

Keywords : Nasal glioma, Intranasal form, Astrocytes.