Abstract
We report a unique case of lumbar disc herniation, in particular, with end-plate and surrounded by extensive ossification, mimicking a tumor with calcification. A 69-year-old female suffered from right buttock and leg pain. Computed tomography (CT) showed an intracanalar mass with calcification or ossification, which most likely originated from the vertebral body at the L1/2 level epidural space. On a T1-weighted gadolinium magnetic resonance image, the capsule of the mass was enhanced and not only the content of the mass but also that of the L2 vertebral body were partially and slightly enhanced. The final pathological diagnosis was disc herniation with end-plate fracture and secondary ossification. A combination of these pathological conditions as accompanied by both end-plate fractures and extensive secondary ossifications has not been previously reported. This rare pathological condition needs to be recognized as a differential diagnosis.
Highlights
It has been suggested that a lumbar disc herniation with “bony fragments” or “calcifications” mimics an epidural tumor [1,2,3,4,5]
We report a rare case of lumbar disc herniation, pathologically, with a bony fragment from the end-plate in which diagnosis was difficult because it was accompanied by the ossification
An Epidural Tumor: A Case Report (a) and 3) secondary ossification was identified around the end-plate
Summary
It has been suggested that a lumbar disc herniation with “bony fragments” or “calcifications” mimics an epidural tumor [1,2,3,4,5]. It has been reported that a benign tumor; extraosseous [6], chondroma [7], and malignant tumor; granular cell tumor [8], capillary hemangioma [9] mimics a vertebra disc herniation. This pathological condition is difficult to diagnose on the basis of physical and radiological information only.
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