"If a vertebral body lesion (e.g. vertebral metastasis, vertebral haemangioma) extends posteriorly to the anterior epidural space, it displaces the posterior longitudinal ligament. However this is limited by that strong medial fixation, giving a bilobular intracanalicular aspect in the axial images, which is commonly called the curtain sign (or draped curtain sign)."
"If a vertebral body lesion (e.g. vertebral metastasis, vertebral haemangioma) extends posteriorly to the anterior epidural space, it displaces the posterior longitudinal ligament. However this is limited by that strong medial fixation, giving a bilobular intracanalicular aspect in the axial images, which is commonly called the curtain sign (or draped curtain sign)."
"If a vertebral body lesion (e.g. vertebral metastasis, vertebral haemangioma) extends posteriorly to the anterior epidural space, it displaces the posterior longitudinal ligament. However this is limited by that strong medial fixation, giving a bilobular intracanalicular aspect in the axial images, which is commonly called the curtain sign (or draped curtain sign)."