PMC10070251_01
Preoperative studies, sagittal magnetic resonance imaging. (a and b) T1-weighted and T2-weighted show an epidural hypointense image of triangular appearance (arrow) at the anatomical site of the yellow ligaments at the T10 vertebral level that molds to the dura mater and compresses posterior and lateral left cords. (c) T1-weighted post contrast does not enhance with the contrast material; it is introduced to the left intervertebral foramen (arrow).
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F1
T11-T12 (compressing the cord to the right) levels [Figures 1a-c]. The T10-T11 laminectomy performed under neurophysiological intraoperative monitoring revealed a partially calcified lesion compressing the cord; intraoperatively, after the cord was decompressed, the somatosensory potentials significantly improved. The intraoperative frozen section revealed leucocyte infiltration and calcification of the lesion, but initial postoperative cultures were negative. Therefore, the patient was routinely discharged without a diagnosis of infection.
Post-operative studies, sagittal magnetic resonance imaging. (a and b) T1-weighted and T2-weighted show a left laminotomy with hemostatic material to the surgical site injected slightly into the dura mater (arrow). The medullary cord recovers its caliber, currently without mass effect.
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F2
Six months later, the thoracic magnetic resonance imaging showed complete resolution of the epidural abscess/ wound infection, and the patient fully recovered [Figure 2].