Problem of dural tail sign in glioblastoma multiforme?

A dural tail, which is a linear enhancement along the dura mater on contrast T1-weighted resonance images, is considered as a common and useful sign for distinguishing meningioma from other intracranial lesions. However, the specific nature of dura tail signs is still controversial. To the best of our knowledge, only seven cases of glioblastoma multiforme have been described with dural tail signs. Here, we report a case of glioblastoma multiforme with a dural tail sign and cerebrospinal fluid cleft sign and review the relevant literature.