脊髓髓内病变.pptVIP

Axial T2-weighted cervical magnetic resonance image shows an ovoid epidural hematoma (arrow) in the right postero-lateral aspect and spinal cord compression (arrowhead) Sagittal T1 and T2 turbo-spin-echo sequences of the posterior spinal canal. A, Sagittal T1 revealing mixed signal intensity in the posterior spinal canal most marked from approximately the T1 level to the T7 level, with minimal findings extending into the lower thoracic and upper lumbar levels. There is an area of high signal intensity extending from the T3 to the T5 level (arrows). B, Sagittal T2 revealing mixed signal intensity in the posterior spinal canal most marked from approximately the T1 level to the T7 level, with minimal findings extending into the lower thoracic and upper lumbar levels. There is an area of low signal intensity extending from the T3 to the T5 level (arrows). Spinal Epidural Lubricant Grease CollectionMimicking Traumatic Spinal Epidural Hematoma we report an unusual presentation of a traumatic spinal epidural fluid collection, caused by a high-pressure injection injury of lubricant grease to the upper thorax and into the thoracic spinal canal. The spinal epidural fluid collection mimicked the appearance of an early subacute spinal epidural hematoma on spinal MR imaging. Again, the case of our patient illustrates the importance of detailed clinical information, including a thorough understanding of the mechanism of trauma at the time of interpretation of spinal imaging studies, since cord compression can rarely be caused by nonhemorrhagic fluid collection. * Sagittal T1 and T2 turbo-spin-echo sequences of the posterior spinal canal. A, Sagittal T1 spin-echo sequence revealing mixed signal intensity in the posterior spinal canal most marked from approximately the T1 level to the T7 level, with minimal findings extending into the lower thoracic and upper lumbar levels. There is an area of high signal intensity extending from the T3 to the T5 level (arrows). B, Sagit