“…Gundry and Heithoff (10) in a series of 18 surgically confirmed cases of lumbar EDH, described the signal characteristics of spinal EDH after an average of 169 days on T2WI but did not discuss T1-weighted imaging signal characteristics. Subacute and chronic spinal EDH have usually been described as hyperintense (1,11,12,30,31,34,35,36,37) , and less often as isointense (1,31,34) , to the spinal cord on T1-weighted images. In a series of three cases of spontaneous spinal EDH within 48 and 72 hours, Rothfus et al (31) described the MR signal characteristics.…”