Optic nerve sheath ectasia. case report

A 13-year-old boy with optic nerve sheath ectasia is presented. The condition is benign but can be mistaken for other more sinister conditions. The differential diagnosis of this benign lesion is given

Mri in basilar invagination

Basilar Invagination has been described in association with many medical conditions which could be either congenital or acquired. Previously, this condition was diagnosed using plain X-ray of the skull utilising difficult-to-apply criteria. Brain CT-scan was also used with some difficulties and limitations. In this paper we describe four different cases of basilar invagination. The role of MRl in its diagnosis is discussed