Radiologic Features and Clinical Course of Chronic Spinal Epidural Hematoma: Report of 4 Cases and Literature Review

CSEH is a rare disease, and it is difficult to diagnose preoperatively on the basis of diagnostic imaging. The incidence of a low-intensity rim on T2*-weighted images and bone erosions on computed tomography may help differentiate rare CSEH from other lumbar degenerative diseases and epidural space-occupying masses.